Finding the Fourth Proportional to 3,997.89, 5,517.25 and 2,229.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,997.89 : 5,517.25 = 2,229.59 : x
2. Step 2: Convert to fraction form
   3,997.89/5,517.25 = 2,229.59/x
3. Step 3: Cross multiply
   3,997.89x = 5,517.25 × 2,229.59
4. Step 4: Simplify right side
   3,997.89x = 12,301,213.65
5. Step 5: Solve for x
   x = 12,301,213.65/3,997.89
6. Step 6: Final answer
   x = 3,076.93