Finding the Fourth Proportional to 1,150.83, 1,588.16 and 626.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.83 : 1,588.16 = 626.87 : x
2. Step 2: Convert to fraction form
   1,150.83/1,588.16 = 626.87/x
3. Step 3: Cross multiply
   1,150.83x = 1,588.16 × 626.87
4. Step 4: Simplify right side
   1,150.83x = 995,558.78
5. Step 5: Solve for x
   x = 995,558.78/1,150.83
6. Step 6: Final answer
   x = 865.08