Finding the Fourth Proportional to 1,382.47, 1,907.71 and 752.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,382.47 : 1,907.71 = 752.99 : x
2. Step 2: Convert to fraction form
   1,382.47/1,907.71 = 752.99/x
3. Step 3: Cross multiply
   1,382.47x = 1,907.71 × 752.99
4. Step 4: Simplify right side
   1,382.47x = 1,436,475.13
5. Step 5: Solve for x
   x = 1,436,475.13/1,382.47
6. Step 6: Final answer
   x = 1,039.07