Finding the Fourth Proportional to 1,150.15, 1,726.01 and 759.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.15 : 1,726.01 = 759.31 : x
2. Step 2: Convert to fraction form
   1,150.15/1,726.01 = 759.31/x
3. Step 3: Cross multiply
   1,150.15x = 1,726.01 × 759.31
4. Step 4: Simplify right side
   1,150.15x = 1,310,576.65
5. Step 5: Solve for x
   x = 1,310,576.65/1,150.15
6. Step 6: Final answer
   x = 1,139.48