Finding the Fourth Proportional to 2,217.43, 3,060.01 and 1,222.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,217.43 : 3,060.01 = 1,222.71 : x
2. Step 2: Convert to fraction form
   2,217.43/3,060.01 = 1,222.71/x
3. Step 3: Cross multiply
   2,217.43x = 3,060.01 × 1,222.71
4. Step 4: Simplify right side
   2,217.43x = 3,741,504.83
5. Step 5: Solve for x
   x = 3,741,504.83/2,217.43
6. Step 6: Final answer
   x = 1,687.32