Finding the Fourth Proportional to 1,150.45, 1,587.63 and 626.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.45 : 1,587.63 = 626.48 : x
2. Step 2: Convert to fraction form
   1,150.45/1,587.63 = 626.48/x
3. Step 3: Cross multiply
   1,150.45x = 1,587.63 × 626.48
4. Step 4: Simplify right side
   1,150.45x = 994,622.45
5. Step 5: Solve for x
   x = 994,622.45/1,150.45
6. Step 6: Final answer
   x = 864.55