Finding the Fourth Proportional to 2,940.72, 4,413.96 and 1,644.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,940.72 : 4,413.96 = 1,644.72 : x
2. Step 2: Convert to fraction form
   2,940.72/4,413.96 = 1,644.72/x
3. Step 3: Cross multiply
   2,940.72x = 4,413.96 × 1,644.72
4. Step 4: Simplify right side
   2,940.72x = 7,259,728.29
5. Step 5: Solve for x
   x = 7,259,728.29/2,940.72
6. Step 6: Final answer
   x = 2,468.69