Finding the Fourth Proportional to 1,040.16, 1,436.90 and 726.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,040.16 : 1,436.90 = 726.29 : x
2. Step 2: Convert to fraction form
   1,040.16/1,436.90 = 726.29/x
3. Step 3: Cross multiply
   1,040.16x = 1,436.90 × 726.29
4. Step 4: Simplify right side
   1,040.16x = 1,043,606.10
5. Step 5: Solve for x
   x = 1,043,606.10/1,040.16
6. Step 6: Final answer
   x = 1,003.31