Finding the Fourth Proportional to 2,221.94, 3,066.30 and 1,227.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,221.94 : 3,066.30 = 1,227.22 : x
2. Step 2: Convert to fraction form
   2,221.94/3,066.30 = 1,227.22/x
3. Step 3: Cross multiply
   2,221.94x = 3,066.30 × 1,227.22
4. Step 4: Simplify right side
   2,221.94x = 3,763,024.69
5. Step 5: Solve for x
   x = 3,763,024.69/2,221.94
6. Step 6: Final answer
   x = 1,693.58