Hi I'm new and need help desperately. I have to admit I am probably not as good in math than most of the people on this site, but I tried my best and just can't figure this problem out.

Can someone please help me out?

1.532 x 0.659 = 0.623

1.542 x 0.631 = 0.623

1.589 x 0.669 = 0.554

1.474 x 0.705 = 0.669

I know each line is simple of course, but the actual problem is X has to match on all 4 lines....

Any help is appreciated. Thanks in advance.