please explain by steps. thank you

3. The balance of a mutual fund on January 1, 2019 is 1,000. The following table includes all cash flow information over the two-year period: Date June 30, 2019 December 31, 2019 June 30, 2020 Value of fund immediately Cash flow prior to the cash flow 1,250 250 1,500 -500 1,250 250 The balance of the mutual fund on December 31, 2020 is X. The time weighted rate of return 13.402%. Using a simple interest approximation, determine the dollar weighted rate of return (15 points) 3. The balance of a mutual fund on January 1, 2019 is 1,000. The following table includes all cash flow information over the two-year period: Date June 30, 2019 December 31, 2019 June 30, 2020 Value of fund immediately Cash flow prior to the cash flow 1,250 250 1,500 -500 1,250 250 The balance of the mutual fund on December 31, 2020 is X. The time weighted rate of return 13.402%. Using a simple interest approximation, determine the dollar weighted rate of return (15 points)