Finding the Fourth Proportional to 1,150.79, 1,588.09 and 626.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.79 : 1,588.09 = 626.82 : x
2. Step 2: Convert to fraction form
   1,150.79/1,588.09 = 626.82/x
3. Step 3: Cross multiply
   1,150.79x = 1,588.09 × 626.82
4. Step 4: Simplify right side
   1,150.79x = 995,441.81
5. Step 5: Solve for x
   x = 995,441.81/1,150.79
6. Step 6: Final answer
   x = 865.01