Finding the Fourth Proportional to 1,383.29, 1,908.96 and 753.85

Step by Step Solution

1. Step 1: Write the proportion equation
   1,383.29 : 1,908.96 = 753.85 : x
2. Step 2: Convert to fraction form
   1,383.29/1,908.96 = 753.85/x
3. Step 3: Cross multiply
   1,383.29x = 1,908.96 × 753.85
4. Step 4: Simplify right side
   1,383.29x = 1,439,066.14
5. Step 5: Solve for x
   x = 1,439,066.14/1,383.29
6. Step 6: Final answer
   x = 1,040.32