Finding the Fourth Proportional to 1,383.46, 1,909.15 and 754.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,383.46 : 1,909.15 = 754.01 : x
2. Step 2: Convert to fraction form
   1,383.46/1,909.15 = 754.01/x
3. Step 3: Cross multiply
   1,383.46x = 1,909.15 × 754.01
4. Step 4: Simplify right side
   1,383.46x = 1,439,524.85
5. Step 5: Solve for x
   x = 1,439,524.85/1,383.46
6. Step 6: Final answer
   x = 1,040.53