Finding the Fourth Proportional to 2,331.93, 3,498.48 and 688.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,331.93 : 3,498.48 = 688.62 : x
2. Step 2: Convert to fraction form
   2,331.93/3,498.48 = 688.62/x
3. Step 3: Cross multiply
   2,331.93x = 3,498.48 × 688.62
4. Step 4: Simplify right side
   2,331.93x = 2,409,123.30
5. Step 5: Solve for x
   x = 2,409,123.30/2,331.93
6. Step 6: Final answer
   x = 1,033.10