Using the spreadsheet in Sidebar 15-8, determine at what periodic interest rate a $5,000 cash receipt occurring at the beginning of year 1 is equivalent to five annual cash disbursements. The first four annual cash disbursements are $1,000 each and occur at the end of each of the first four years. The last cash disbursement is $2,000 and occurs at the end of the fifth year. The periodic interest rate is compounded annually.