Finding the Fourth Proportional to 1,061.91, 1,593.17 and 331.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.91 : 1,593.17 = 331.49 : x
2. Step 2: Convert to fraction form
   1,061.91/1,593.17 = 331.49/x
3. Step 3: Cross multiply
   1,061.91x = 1,593.17 × 331.49
4. Step 4: Simplify right side
   1,061.91x = 528,123.49
5. Step 5: Solve for x
   x = 528,123.49/1,061.91
6. Step 6: Final answer
   x = 497.33