Finding the Fourth Proportional to 1,031.02, 1,422.47 and 632.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,031.02 : 1,422.47 = 632.27 : x
2. Step 2: Convert to fraction form
   1,031.02/1,422.47 = 632.27/x
3. Step 3: Cross multiply
   1,031.02x = 1,422.47 × 632.27
4. Step 4: Simplify right side
   1,031.02x = 899,385.11
5. Step 5: Solve for x
   x = 899,385.11/1,031.02
6. Step 6: Final answer
   x = 872.33