Finding the Fourth Proportional to 2,491.47, 3,413.33 and 2,398.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,491.47 : 3,413.33 = 2,398.05 : x
2. Step 2: Convert to fraction form
   2,491.47/3,413.33 = 2,398.05/x
3. Step 3: Cross multiply
   2,491.47x = 3,413.33 × 2,398.05
4. Step 4: Simplify right side
   2,491.47x = 8,185,337.51
5. Step 5: Solve for x
   x = 8,185,337.51/2,491.47
6. Step 6: Final answer
   x = 3,285.34