Weight of X is Ag, of Y is Bg and Z is Cg.
So B = A + 2463 g and C = B + 1944 g and B + C = 8628
B + C = 8628
B + (B+1944) = 8628
2B = 8628-1944
2B = 6684
B = 3342
Now B = A + 2468
So, A = B – 2468 = 3342 – 2468 = 874
You can get value is C by subtracting B from 8628