Finding the Fourth Proportional to 1,150.05, 1,587.07 and 626.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.05 : 1,587.07 = 626.07 : x
2. Step 2: Convert to fraction form
   1,150.05/1,587.07 = 626.07/x
3. Step 3: Cross multiply
   1,150.05x = 1,587.07 × 626.07
4. Step 4: Simplify right side
   1,150.05x = 993,616.91
5. Step 5: Solve for x
   x = 993,616.91/1,150.05
6. Step 6: Final answer
   x = 863.98