Finding the Fourth Proportional to 1,382.10, 1,907.30 and 752.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,382.10 : 1,907.30 = 752.62 : x
2. Step 2: Convert to fraction form
   1,382.10/1,907.30 = 752.62/x
3. Step 3: Cross multiply
   1,382.10x = 1,907.30 × 752.62
4. Step 4: Simplify right side
   1,382.10x = 1,435,468.36
5. Step 5: Solve for x
   x = 1,435,468.36/1,382.10
6. Step 6: Final answer
   x = 1,038.61