Finding the Fourth Proportional to 1,151.32, 1,726.98 and 381.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,151.32 : 1,726.98 = 381.82 : x
2. Step 2: Convert to fraction form
   1,151.32/1,726.98 = 381.82/x
3. Step 3: Cross multiply
   1,151.32x = 1,726.98 × 381.82
4. Step 4: Simplify right side
   1,151.32x = 659,395.50
5. Step 5: Solve for x
   x = 659,395.50/1,151.32
6. Step 6: Final answer
   x = 572.73