Finding the Fourth Proportional to 1,078.92, 1,489.59 and 747.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,078.92 : 1,489.59 = 747.23 : x
2. Step 2: Convert to fraction form
   1,078.92/1,489.59 = 747.23/x
3. Step 3: Cross multiply
   1,078.92x = 1,489.59 × 747.23
4. Step 4: Simplify right side
   1,078.92x = 1,113,058.89
5. Step 5: Solve for x
   x = 1,113,058.89/1,078.92
6. Step 6: Final answer
   x = 1,031.64