Finding the Fourth Proportional to 1,150.12, 1,587.17 and 626.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.12 : 1,587.17 = 626.15 : x
2. Step 2: Convert to fraction form
   1,150.12/1,587.17 = 626.15/x
3. Step 3: Cross multiply
   1,150.12x = 1,587.17 × 626.15
4. Step 4: Simplify right side
   1,150.12x = 993,806.50
5. Step 5: Solve for x
   x = 993,806.50/1,150.12
6. Step 6: Final answer
   x = 864.09