Finding the Fourth Proportional to 2,253.36, 3,108.78 and 1,413.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,253.36 : 3,108.78 = 1,413.72 : x
2. Step 2: Convert to fraction form
   2,253.36/3,108.78 = 1,413.72/x
3. Step 3: Cross multiply
   2,253.36x = 3,108.78 × 1,413.72
4. Step 4: Simplify right side
   2,253.36x = 4,394,944.46
5. Step 5: Solve for x
   x = 4,394,944.46/2,253.36
6. Step 6: Final answer
   x = 1,950.40