The prevailing interest rate is $7\mathrm{.}5$ percent. Suppose you purchase an asset that promises to

pay $$400$ three years from now, $$450$ three years after that, and $$x$ two years after that. If

you purchased the asset for $$923,$ what is $x?($you can round a bit$)$

None of the others are correct.

$$614.$

$$309.$

$$551.$