Finding the Fourth Proportional to 5,413.25, 8,120.72 and 2,293.27

Step by Step Solution

1. Step 1: Write the proportion equation
   5,413.25 : 8,120.72 = 2,293.27 : x
2. Step 2: Convert to fraction form
   5,413.25/8,120.72 = 2,293.27/x
3. Step 3: Cross multiply
   5,413.25x = 8,120.72 × 2,293.27
4. Step 4: Simplify right side
   5,413.25x = 18,623,003.55
5. Step 5: Solve for x
   x = 18,623,003.55/5,413.25
6. Step 6: Final answer
   x = 3,440.26