Accumulate added value

Managed to solve the problem finally!

Not necessary to be an efficient solution, but at least it works after so many trials.

In a nutshell, I'm using the monthly added value times the progressed month to get the accumulated added value for each project and sum all projects together.

Accumulated Added Value = 
SUMX(VALUES(Project[Number]), [Progressed Month] * [Active Monthly Added Value])

where

Progressed Month = 
CALCULATE(
	DISTINCTCOUNT('Date'[Period]),
	FILTER(
		'Date',
		'Date'[Date] >= 
		MAX(
			[FiscalYear Start], 
			MIN(Project[Start Date])
		)
		&& 'Date'[Date] <= 
		MIN(
			[PeriodEnd], 
			MAX(Project[Completion Date])
		) 
	)
)

and

Active Monthly Added Value = 
CALCULATE(
	SUM([Added Value/Month]), 
	FILTER(
		Project, 
		Project[Start Date] <= [FiscalYearEnd]
	), 
	FILTER(
		Project, 
		Project[Start Date] <= [PeriodEnd]
	)
)

and the visual looks like this (colours are used for prject types). Hope this would help those with similar problems.