Finding the Fourth Proportional to 2,290.72, 3,413.59 and 2,227.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,290.72 : 3,413.59 = 2,227.36 : x
2. Step 2: Convert to fraction form
   2,290.72/3,413.59 = 2,227.36/x
3. Step 3: Cross multiply
   2,290.72x = 3,413.59 × 2,227.36
4. Step 4: Simplify right side
   2,290.72x = 7,603,293.82
5. Step 5: Solve for x
   x = 7,603,293.82/2,290.72
6. Step 6: Final answer
   x = 3,319.17