Finding the Fourth Proportional to 1,032.28, 1,540.38 and 1,007.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,032.28 : 1,540.38 = 1,007.57 : x
2. Step 2: Convert to fraction form
   1,032.28/1,540.38 = 1,007.57/x
3. Step 3: Cross multiply
   1,032.28x = 1,540.38 × 1,007.57
4. Step 4: Simplify right side
   1,032.28x = 1,552,048.31
5. Step 5: Solve for x
   x = 1,552,048.31/1,032.28
6. Step 6: Final answer
   x = 1,503.52