Finding the Fourth Proportional to 2,221.79, 3,066.02 and 1,227.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,221.79 : 3,066.02 = 1,227.04 : x
2. Step 2: Convert to fraction form
   2,221.79/3,066.02 = 1,227.04/x
3. Step 3: Cross multiply
   2,221.79x = 3,066.02 × 1,227.04
4. Step 4: Simplify right side
   2,221.79x = 3,762,119.98
5. Step 5: Solve for x
   x = 3,762,119.98/2,221.79
6. Step 6: Final answer
   x = 1,693.29