Finding the Fourth Proportional to 2,222.20, 3,066.60 and 1,227.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,222.20 : 3,066.60 = 1,227.56 : x
2. Step 2: Convert to fraction form
   2,222.20/3,066.60 = 1,227.56/x
3. Step 3: Cross multiply
   2,222.20x = 3,066.60 × 1,227.56
4. Step 4: Simplify right side
   2,222.20x = 3,764,435.50
5. Step 5: Solve for x
   x = 3,764,435.50/2,222.20
6. Step 6: Final answer
   x = 1,694.01