Finding the Fourth Proportional to 1,104.52, 1,524.81 and 855.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,104.52 : 1,524.81 = 855.28 : x
2. Step 2: Convert to fraction form
   1,104.52/1,524.81 = 855.28/x
3. Step 3: Cross multiply
   1,104.52x = 1,524.81 × 855.28
4. Step 4: Simplify right side
   1,104.52x = 1,304,139.50
5. Step 5: Solve for x
   x = 1,304,139.50/1,104.52
6. Step 6: Final answer
   x = 1,180.73