Finding the Fourth Proportional to 2,672.32, 4,007.52 and 1,028.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,672.32 : 4,007.52 = 1,028.04 : x
2. Step 2: Convert to fraction form
   2,672.32/4,007.52 = 1,028.04/x
3. Step 3: Cross multiply
   2,672.32x = 4,007.52 × 1,028.04
4. Step 4: Simplify right side
   2,672.32x = 4,119,890.86
5. Step 5: Solve for x
   x = 4,119,890.86/2,672.32
6. Step 6: Final answer
   x = 1,541.69