Finding the Fourth Proportional to 1,382.71, 1,908.12 and 753.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,382.71 : 1,908.12 = 753.22 : x
2. Step 2: Convert to fraction form
   1,382.71/1,908.12 = 753.22/x
3. Step 3: Cross multiply
   1,382.71x = 1,908.12 × 753.22
4. Step 4: Simplify right side
   1,382.71x = 1,437,234.15
5. Step 5: Solve for x
   x = 1,437,234.15/1,382.71
6. Step 6: Final answer
   x = 1,039.43