Finding the Fourth Proportional to 1,382.57, 1,907.93 and 753.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,382.57 : 1,907.93 = 753.09 : x
2. Step 2: Convert to fraction form
   1,382.57/1,907.93 = 753.09/x
3. Step 3: Cross multiply
   1,382.57x = 1,907.93 × 753.09
4. Step 4: Simplify right side
   1,382.57x = 1,436,852.21
5. Step 5: Solve for x
   x = 1,436,852.21/1,382.57
6. Step 6: Final answer
   x = 1,039.26