Finding the Fourth Proportional to 1,016.22, 1,522.88 and 626.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.22 : 1,522.88 = 626.15 : x
2. Step 2: Convert to fraction form
   1,016.22/1,522.88 = 626.15/x
3. Step 3: Cross multiply
   1,016.22x = 1,522.88 × 626.15
4. Step 4: Simplify right side
   1,016.22x = 953,540.57
5. Step 5: Solve for x
   x = 953,540.57/1,016.22
6. Step 6: Final answer
   x = 938.32