Finding the Fourth Proportional to 1,150.39, 1,587.54 and 626.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.39 : 1,587.54 = 626.42 : x
2. Step 2: Convert to fraction form
   1,150.39/1,587.54 = 626.42/x
3. Step 3: Cross multiply
   1,150.39x = 1,587.54 × 626.42
4. Step 4: Simplify right side
   1,150.39x = 994,466.81
5. Step 5: Solve for x
   x = 994,466.81/1,150.39
6. Step 6: Final answer
   x = 864.46