Finding the Fourth Proportional to 2,222.15, 3,066.53 and 1,227.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,222.15 : 3,066.53 = 1,227.42 : x
2. Step 2: Convert to fraction form
   2,222.15/3,066.53 = 1,227.42/x
3. Step 3: Cross multiply
   2,222.15x = 3,066.53 × 1,227.42
4. Step 4: Simplify right side
   2,222.15x = 3,763,914.12
5. Step 5: Solve for x
   x = 3,763,914.12/2,222.15
6. Step 6: Final answer
   x = 1,693.82