Instead of receiving an inheritance, assume you have an investment that provides the following cash flows: $$5,000$ in year $1$; $$7,000$ in year $2$; $$8,000$ in year $3$; $$3,000$ in years $4-6.$ If you sold this investment today and deposited the proceeds to help with your annuity purchase, what would your monthly payments be$?$ Assume required returns on this type of investment are $3\%($i$.$e$.$ the interest rate is $3\%).$