Finding the Fourth Proportional to 2,371.82, 3,557.48 and 728.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,371.82 : 3,557.48 = 728.37 : x
2. Step 2: Convert to fraction form
   2,371.82/3,557.48 = 728.37/x
3. Step 3: Cross multiply
   2,371.82x = 3,557.48 × 728.37
4. Step 4: Simplify right side
   2,371.82x = 2,591,158.07
5. Step 5: Solve for x
   x = 2,591,158.07/2,371.82
6. Step 6: Final answer
   x = 1,092.48