Finding the Fourth Proportional to 1,031.37, 1,422.65 and 632.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,031.37 : 1,422.65 = 632.82 : x
2. Step 2: Convert to fraction form
   1,031.37/1,422.65 = 632.82/x
3. Step 3: Cross multiply
   1,031.37x = 1,422.65 × 632.82
4. Step 4: Simplify right side
   1,031.37x = 900,278.21
5. Step 5: Solve for x
   x = 900,278.21/1,031.37
6. Step 6: Final answer
   x = 872.90