Finding the Fourth Proportional to 1,250.72, 1,726.42 and 854.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,250.72 : 1,726.42 = 854.33 : x
2. Step 2: Convert to fraction form
   1,250.72/1,726.42 = 854.33/x
3. Step 3: Cross multiply
   1,250.72x = 1,726.42 × 854.33
4. Step 4: Simplify right side
   1,250.72x = 1,474,932.40
5. Step 5: Solve for x
   x = 1,474,932.40/1,250.72
6. Step 6: Final answer
   x = 1,179.27