A demand loan of $$$$3000\mathrm{.}00$ is repaid by payments of $$$$1500\mathrm{.}00$ after two $$years$,$$$1500\mathrm{.}00$ after four $$years$,$ and a final payment after six years. Interest is $7\%$ compounded semi dash annually for the first two $$years$,8\%$ compounded annually for the next two $$years$,$ and $8\%$ compounded semi dash annually thereafter. What is the size of the final$$ payment?

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Part $1$

The final payment is $$$

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