Hello, please don't use Excel for this problem. I prefer it solved manually, thank you.

5. Ritter incorporated paid a dividend of $2 per share. Its management team has announced a technological breakthrough that is expected to result in a temporary increase in sales, profits, and common stock dividends. Analysts expect the firm's per share dividends to be $2.50 next year, $3 in two years, and $3,50 in three years. After that normal dividend growth of 5% is expected to resume. If Ritter shareholders expect 15% return on their investment, what should the firm's stock price be