Finding the Fourth Proportional to 3,997.87, 5,516.89 and 2,229.64

Step by Step Solution

1. Step 1: Write the proportion equation
   3,997.87 : 5,516.89 = 2,229.64 : x
2. Step 2: Convert to fraction form
   3,997.87/5,516.89 = 2,229.64/x
3. Step 3: Cross multiply
   3,997.87x = 5,516.89 × 2,229.64
4. Step 4: Simplify right side
   3,997.87x = 12,300,659.25
5. Step 5: Solve for x
   x = 12,300,659.25/3,997.87
6. Step 6: Final answer
   x = 3,076.81