Finding the Fourth Proportional to 1,150.38, 1,587.51 and 678.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.38 : 1,587.51 = 678.24 : x
2. Step 2: Convert to fraction form
   1,150.38/1,587.51 = 678.24/x
3. Step 3: Cross multiply
   1,150.38x = 1,587.51 × 678.24
4. Step 4: Simplify right side
   1,150.38x = 1,076,712.78
5. Step 5: Solve for x
   x = 1,076,712.78/1,150.38
6. Step 6: Final answer
   x = 935.96