Finding the Fourth Proportional to 1,150.38, 1,587.52 and 684.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.38 : 1,587.52 = 684.63 : x
2. Step 2: Convert to fraction form
   1,150.38/1,587.52 = 684.63/x
3. Step 3: Cross multiply
   1,150.38x = 1,587.52 × 684.63
4. Step 4: Simplify right side
   1,150.38x = 1,086,855.88
5. Step 5: Solve for x
   x = 1,086,855.88/1,150.38
6. Step 6: Final answer
   x = 944.78