Finding the Fourth Proportional to 498.32, 687.71 and 332.43

Step by Step Solution

1. Step 1: Write the proportion equation
   498.32 : 687.71 = 332.43 : x
2. Step 2: Convert to fraction form
   498.32/687.71 = 332.43/x
3. Step 3: Cross multiply
   498.32x = 687.71 × 332.43
4. Step 4: Simplify right side
   498.32x = 228,613.69
5. Step 5: Solve for x
   x = 228,613.69/498.32
6. Step 6: Final answer
   x = 458.77