Finding the Fourth Proportional to 1,150.47, 1,587.59 and 626.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.47 : 1,587.59 = 626.50 : x
2. Step 2: Convert to fraction form
   1,150.47/1,587.59 = 626.50/x
3. Step 3: Cross multiply
   1,150.47x = 1,587.59 × 626.50
4. Step 4: Simplify right side
   1,150.47x = 994,625.14
5. Step 5: Solve for x
   x = 994,625.14/1,150.47
6. Step 6: Final answer
   x = 864.54