Finding the Fourth Proportional to 1,150.71, 1,587.94 and 626.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.71 : 1,587.94 = 626.75 : x
2. Step 2: Convert to fraction form
   1,150.71/1,587.94 = 626.75/x
3. Step 3: Cross multiply
   1,150.71x = 1,587.94 × 626.75
4. Step 4: Simplify right side
   1,150.71x = 995,241.40
5. Step 5: Solve for x
   x = 995,241.40/1,150.71
6. Step 6: Final answer
   x = 864.89