The following loan is fully amortizing. The loan amount is $$10,000$ at $3\%$ interest to be repaid over four $(4)$ years. Amortize this loan on a monthly basis. You are to

calculate the interest portion of the fourth $(4$th$)$ payment considering that an additional payment of $$2,000$ was made with the second payment.

Please show work and how you got to the answer $($needed$)$

Thank you!