Finding the Fourth Proportional to 1,524.18, 2,103.37 and 825.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,524.18 : 2,103.37 = 825.55 : x
2. Step 2: Convert to fraction form
   1,524.18/2,103.37 = 825.55/x
3. Step 3: Cross multiply
   1,524.18x = 2,103.37 × 825.55
4. Step 4: Simplify right side
   1,524.18x = 1,736,437.10
5. Step 5: Solve for x
   x = 1,736,437.10/1,524.18
6. Step 6: Final answer
   x = 1,139.26