Finding the Fourth Proportional to 1,351.31, 1,864.83 and 753.85

Step by Step Solution

1. Step 1: Write the proportion equation
   1,351.31 : 1,864.83 = 753.85 : x
2. Step 2: Convert to fraction form
   1,351.31/1,864.83 = 753.85/x
3. Step 3: Cross multiply
   1,351.31x = 1,864.83 × 753.85
4. Step 4: Simplify right side
   1,351.31x = 1,405,802.10
5. Step 5: Solve for x
   x = 1,405,802.10/1,351.31
6. Step 6: Final answer
   x = 1,040.33