In a constant growth stock, the stock price will grow at the same rate as the dividends. This growth rate is also called the capital gains yield. So, if the capital gains yield is 3.6%, so is the expected growth rate in dividends or earnings (assuming, of course, that the firm maintains a cosntant dividend payout ratio).
While not asked for, the required rate of return on equity (or cost of equity) in this case will be the sum of the dividend yield plus the growth rate, or 0.84/17.50 + 0.036, or 0.084