please show me the steps

\\ .r .J Problem 4.3 (10 points) Over the long term, a continuoustime Markov chain on {1, 2,3, 4] spends 10% of the time in state 1, and 30% of the time each in state 2, 3, and 4, rapectively. Moreover, from any state i E {1, 2, 3, 4} , it stays on average 2' minutes before moving to a new state. (a) Find the stationary distribution of the continuoustime chain. (b) Find the stationary distribution of the embedded discretetime chain