Finding the Fourth Proportional to 2,004.52, 3,007.16 and 688.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,004.52 : 3,007.16 = 688.41 : x
2. Step 2: Convert to fraction form
   2,004.52/3,007.16 = 688.41/x
3. Step 3: Cross multiply
   2,004.52x = 3,007.16 × 688.41
4. Step 4: Simplify right side
   2,004.52x = 2,070,159.02
5. Step 5: Solve for x
   x = 2,070,159.02/2,004.52
6. Step 6: Final answer
   x = 1,032.75