Answer:
The current price of the common stock is $26.57
Explanation:
Using the SML equation, we can calculate the required rate of return on the company's stock.
r = 3% + 1.2 * 5.5% Â Â Â
r = 9.6%
The stock price of the company can be determined using the two stage growth model.
P0 = D1 / (1+r)  +  D2 / (1+r)²  + ... + (D / r) / (1+r)^n
Here, as the stock becomes a zero growth stock after 4 years, we will replace terminal value with price formula of zero growth stock and discount it.
Thus,
P0 = 1.25(1+0.22) / (1+0.096)   +   1.25(1+0.22)² / (1+0.096)²  +  1.25(1+0.22)³/(1+0.096)³   +  1.25(1+0.22)^4 / (1+0.096)^4   +  (1.25(1+0.22)^4/0.096) / (1+0.096)^4
PO = $26.57