Finding the Fourth Proportional to 1,382.06, 1,907.25 and 752.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,382.06 : 1,907.25 = 752.60 : x
2. Step 2: Convert to fraction form
   1,382.06/1,907.25 = 752.60/x
3. Step 3: Cross multiply
   1,382.06x = 1,907.25 × 752.60
4. Step 4: Simplify right side
   1,382.06x = 1,435,396.35
5. Step 5: Solve for x
   x = 1,435,396.35/1,382.06
6. Step 6: Final answer
   x = 1,038.59