Finding the Fourth Proportional to 1,078.38, 1,485.54 and 746.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,078.38 : 1,485.54 = 746.24 : x
2. Step 2: Convert to fraction form
   1,078.38/1,485.54 = 746.24/x
3. Step 3: Cross multiply
   1,078.38x = 1,485.54 × 746.24
4. Step 4: Simplify right side
   1,078.38x = 1,108,561.94
5. Step 5: Solve for x
   x = 1,108,561.94/1,078.38
6. Step 6: Final answer
   x = 1,027.99