Finding the Fourth Proportional to 2,371.89, 3,557.98 and 728.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,371.89 : 3,557.98 = 728.46 : x
2. Step 2: Convert to fraction form
   2,371.89/3,557.98 = 728.46/x
3. Step 3: Cross multiply
   2,371.89x = 3,557.98 × 728.46
4. Step 4: Simplify right side
   2,371.89x = 2,591,846.11
5. Step 5: Solve for x
   x = 2,591,846.11/2,371.89
6. Step 6: Final answer
   x = 1,092.73