Finding the Fourth Proportional to 1,078.38, 1,487.16 and 746.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,078.38 : 1,487.16 = 746.28 : x
2. Step 2: Convert to fraction form
   1,078.38/1,487.16 = 746.28/x
3. Step 3: Cross multiply
   1,078.38x = 1,487.16 × 746.28
4. Step 4: Simplify right side
   1,078.38x = 1,109,837.76
5. Step 5: Solve for x
   x = 1,109,837.76/1,078.38
6. Step 6: Final answer
   x = 1,029.17