A debt can be paid by payments of $$750$ scheduled today, $$525$ scheduled in $10$ months, and $$875$ scheduled in $18$ months. One single payment is required to settle the debt $6$ months from now $($use this as the focal date$).$ If money is worth $4\mathrm{.}81\%$ compounded semi$-$annually, what is the size of the single equivalent payment? Use the partial timeline below to help you. State your answer in dollars $($$$)$ with two decimal places.

$\backslash$table$[[$today$,6mo,10mo,18mo$