Finding the Fourth Proportional to 2,209.43, 3,314.27 and 728.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,209.43 : 3,314.27 = 728.59 : x
2. Step 2: Convert to fraction form
   2,209.43/3,314.27 = 728.59/x
3. Step 3: Cross multiply
   2,209.43x = 3,314.27 × 728.59
4. Step 4: Simplify right side
   2,209.43x = 2,414,743.98
5. Step 5: Solve for x
   x = 2,414,743.98/2,209.43
6. Step 6: Final answer
   x = 1,092.93