Finding the Fourth Proportional to 3,789.56, 5,229.63 and 2,217.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,789.56 : 5,229.63 = 2,217.69 : x
2. Step 2: Convert to fraction form
   3,789.56/5,229.63 = 2,217.69/x
3. Step 3: Cross multiply
   3,789.56x = 5,229.63 × 2,217.69
4. Step 4: Simplify right side
   3,789.56x = 11,597,698.15
5. Step 5: Solve for x
   x = 11,597,698.15/3,789.56
6. Step 6: Final answer
   x = 3,060.43