Hi,

I read this

X/1294 = (14851 + X) / 15604

=>

X = 1294 * 14851/ (15604 - 1294)

I can't see how this is done, is it correct ?

If I multiply through by 1294 I get

X = (1294 *14851/15604) + (1294 * X / 15604)

and I don't see how the right hand side can simplify into the above expression.

so can you teach me how this works (I reckon this has been troubling me for at least 40 years)