Finding the Fourth Proportional to 1,150.18, 1,587.28 and 626.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.18 : 1,587.28 = 626.24 : x
2. Step 2: Convert to fraction form
   1,150.18/1,587.28 = 626.24/x
3. Step 3: Cross multiply
   1,150.18x = 1,587.28 × 626.24
4. Step 4: Simplify right side
   1,150.18x = 994,018.23
5. Step 5: Solve for x
   x = 994,018.23/1,150.18
6. Step 6: Final answer
   x = 864.23