Finding the Fourth Proportional to 1,016.43, 1,525.86 and 625.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.43 : 1,525.86 = 625.29 : x
2. Step 2: Convert to fraction form
   1,016.43/1,525.86 = 625.29/x
3. Step 3: Cross multiply
   1,016.43x = 1,525.86 × 625.29
4. Step 4: Simplify right side
   1,016.43x = 954,105.00
5. Step 5: Solve for x
   x = 954,105.00/1,016.43
6. Step 6: Final answer
   x = 938.68