On July $5,$ Fat Tires Ltd$.$ borrowed $$800000$ with an interest rate of $9\mathrm{.}8\%.$ The loan was repaid in full on October $2,$ with payments of $$2600\mathrm{.}00$ on August $6$ and $$3500\mathrm{.}00$ on September $3.$ What was the final payment?

The final payment was $

$($Round the final answer to$,$ the nearest cent as needed. Round all intermediate values to six decimal places as needed.$)$