Finding the Fourth Proportional to 2,472.72, 3,413.16 and 1,425.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,472.72 : 3,413.16 = 1,425.12 : x
2. Step 2: Convert to fraction form
   2,472.72/3,413.16 = 1,425.12/x
3. Step 3: Cross multiply
   2,472.72x = 3,413.16 × 1,425.12
4. Step 4: Simplify right side
   2,472.72x = 4,864,162.58
5. Step 5: Solve for x
   x = 4,864,162.58/2,472.72
6. Step 6: Final answer
   x = 1,967.13