Finding the Fourth Proportional to 1,151.75, 1,726.17 and 907.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,151.75 : 1,726.17 = 907.31 : x
2. Step 2: Convert to fraction form
   1,151.75/1,726.17 = 907.31/x
3. Step 3: Cross multiply
   1,151.75x = 1,726.17 × 907.31
4. Step 4: Simplify right side
   1,151.75x = 1,566,162.67
5. Step 5: Solve for x
   x = 1,566,162.67/1,151.75
6. Step 6: Final answer
   x = 1,359.82