Finding the Fourth Proportional to 1,285.43, 1,773.83 and 754.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,285.43 : 1,773.83 = 754.25 : x
2. Step 2: Convert to fraction form
   1,285.43/1,773.83 = 754.25/x
3. Step 3: Cross multiply
   1,285.43x = 1,773.83 × 754.25
4. Step 4: Simplify right side
   1,285.43x = 1,337,904.29
5. Step 5: Solve for x
   x = 1,337,904.29/1,285.43
6. Step 6: Final answer
   x = 1,040.82