Oh good, I was pretty sure that would work, it has worked for me in the past. So the big thing is to wait a few days.
Generally there is one super mean one, that attacks first, and then one that follows the leader. You want to add the follower, again, rather late in the day, maybe half an hour before dark. See how it goes. Again, a bit of bluster and chase is fine, and keep the hose handy. But after several days out of the coop, I really would not expect much.
Then wait several days again. That top bird is a naturally dominant bird, she will be the top leader more than likely, but if the trio, have had time to bond, it will be three against one, and she will probably bluster up with all of them, but that is exhausting, so should relax once she has made her point. Again, add her late in the day, when the urge to roost, is nearly equal to the urge to fight.
Mrs K