Finding the Fourth Proportional to 1,488.52, 2,055.11 and 1,040.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.52 : 2,055.11 = 1,040.24 : x
2. Step 2: Convert to fraction form
   1,488.52/2,055.11 = 1,040.24/x
3. Step 3: Cross multiply
   1,488.52x = 2,055.11 × 1,040.24
4. Step 4: Simplify right side
   1,488.52x = 2,137,792.15
5. Step 5: Solve for x
   x = 2,137,792.15/1,488.52
6. Step 6: Final answer
   x = 1,436.19