Finding the Fourth Proportional to 2,382.78, 3,575.64 and 1,150.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,382.78 : 3,575.64 = 1,150.31 : x
2. Step 2: Convert to fraction form
   2,382.78/3,575.64 = 1,150.31/x
3. Step 3: Cross multiply
   2,382.78x = 3,575.64 × 1,150.31
4. Step 4: Simplify right side
   2,382.78x = 4,113,094.45
5. Step 5: Solve for x
   x = 4,113,094.45/2,382.78
6. Step 6: Final answer
   x = 1,726.17