Dynamically Filtering a Cumulative Total Visual based on an End Date in a Table

I am able to calculate cumulative totals using measures but I want to view it by project rather than by a date period. When I do this, the measures show data through the current date instead of the last date for which I have data. My measure is the same as this with different names:

https://community.powerbi.com/t5/DAX-Commands-and-Tips/Cumulative-Total-with-Max-Date-Filter/m-p/769187/highlight/true#M3589

Cumulative total measure:

Running Labor Hrs =
var _maxDate = MAX('Date'[Date])

return

CALCULATE(sum('Labor[Labor Hrs]),FILTER(ALL('Date'),'Date'[Date] <= _maxDate))

The Date table is simply generated using a table formula:

Date = CALENDAR(DATE(2017,1,1),TODAY())

This works fine to show a running (or cumulative) total.

However, since I run the visual by the project number, I would rather have the date range end at the last active date of the project, otherwise it shows me a lot of redundant data between the last active date and the current date which could span months or years.

I have spent many hours trying to filter the Date table dynamically using references to a second table with unique value of last date and first date for each project similar to this:

[Project Dates] table

However, I cannot seem to use this table in a way, along with page slicers that are used to select the project, to dynamically adjust the Date table’s maximum values.

I assume that because the page slicer is involved, it makes it very tricky to ensure that the Project Dates table can be used to abbreviate the Date table so as to not include dates beyond the "Last Date".

Is there a way to dynamically filter the Date table based on the “project” slicer and the related “Last Date” from the Project Dates table?