Finding the Fourth Proportional to 2,004.01, 3,006.43 and 687.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,004.01 : 3,006.43 = 687.86 : x
2. Step 2: Convert to fraction form
   2,004.01/3,006.43 = 687.86/x
3. Step 3: Cross multiply
   2,004.01x = 3,006.43 × 687.86
4. Step 4: Simplify right side
   2,004.01x = 2,068,002.94
5. Step 5: Solve for x
   x = 2,068,002.94/2,004.01
6. Step 6: Final answer
   x = 1,031.93