Finding the Fourth Proportional to 1,150.69, 1,587.98 and 626.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.69 : 1,587.98 = 626.75 : x
2. Step 2: Convert to fraction form
   1,150.69/1,587.98 = 626.75/x
3. Step 3: Cross multiply
   1,150.69x = 1,587.98 × 626.75
4. Step 4: Simplify right side
   1,150.69x = 995,266.47
5. Step 5: Solve for x
   x = 995,266.47/1,150.69
6. Step 6: Final answer
   x = 864.93