Finding the Fourth Proportional to 2,331.42, 3,496.25 and 687.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,331.42 : 3,496.25 = 687.50 : x
2. Step 2: Convert to fraction form
   2,331.42/3,496.25 = 687.50/x
3. Step 3: Cross multiply
   2,331.42x = 3,496.25 × 687.50
4. Step 4: Simplify right side
   2,331.42x = 2,403,671.88
5. Step 5: Solve for x
   x = 2,403,671.88/2,331.42
6. Step 6: Final answer
   x = 1,030.99