Finding the Fourth Proportional to 1,508.94, 2,262.42 and 728.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,508.94 : 2,262.42 = 728.73 : x
2. Step 2: Convert to fraction form
   1,508.94/2,262.42 = 728.73/x
3. Step 3: Cross multiply
   1,508.94x = 2,262.42 × 728.73
4. Step 4: Simplify right side
   1,508.94x = 1,648,693.33
5. Step 5: Solve for x
   x = 1,648,693.33/1,508.94
6. Step 6: Final answer
   x = 1,092.62