Finding the Fourth Proportional to 1,335.72, 1,843.20 and 746.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,335.72 : 1,843.20 = 746.24 : x
2. Step 2: Convert to fraction form
   1,335.72/1,843.20 = 746.24/x
3. Step 3: Cross multiply
   1,335.72x = 1,843.20 × 746.24
4. Step 4: Simplify right side
   1,335.72x = 1,375,469.57
5. Step 5: Solve for x
   x = 1,375,469.57/1,335.72
6. Step 6: Final answer
   x = 1,029.76