Finding the Fourth Proportional to 2,004.60, 3,007.17 and 688.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,004.60 : 3,007.17 = 688.02 : x
2. Step 2: Convert to fraction form
   2,004.60/3,007.17 = 688.02/x
3. Step 3: Cross multiply
   2,004.60x = 3,007.17 × 688.02
4. Step 4: Simplify right side
   2,004.60x = 2,068,993.10
5. Step 5: Solve for x
   x = 2,068,993.10/2,004.60
6. Step 6: Final answer
   x = 1,032.12