Finding the Fourth Proportional to 2,728.72, 4,096.83 and 1,413.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,728.72 : 4,096.83 = 1,413.40 : x
2. Step 2: Convert to fraction form
   2,728.72/4,096.83 = 1,413.40/x
3. Step 3: Cross multiply
   2,728.72x = 4,096.83 × 1,413.40
4. Step 4: Simplify right side
   2,728.72x = 5,790,459.52
5. Step 5: Solve for x
   x = 5,790,459.52/2,728.72
6. Step 6: Final answer
   x = 2,122.04