The price of the bushel is 1.22, 1.41, 1.38, and 1.27.
To calculate the weighted average, all you need to is to just add all the values given above and then divide it by 4, since we only have 4 values of the bushel.
So: 1.22 + 1.41 + 1.38 + 1.27 = 5.28
5.28 / 4 = 1.32
Round it off to only two significant figures, you would get: $1.30.