Finding the Fourth Proportional to 1,150.67, 1,587.93 and 626.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.67 : 1,587.93 = 626.71 : x
2. Step 2: Convert to fraction form
   1,150.67/1,587.93 = 626.71/x
3. Step 3: Cross multiply
   1,150.67x = 1,587.93 × 626.71
4. Step 4: Simplify right side
   1,150.67x = 995,171.61
5. Step 5: Solve for x
   x = 995,171.61/1,150.67
6. Step 6: Final answer
   x = 864.86