Finding the Fourth Proportional to 2,222.39, 3,066.91 and 1,227.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,222.39 : 3,066.91 = 1,227.69 : x
2. Step 2: Convert to fraction form
   2,222.39/3,066.91 = 1,227.69/x
3. Step 3: Cross multiply
   2,222.39x = 3,066.91 × 1,227.69
4. Step 4: Simplify right side
   2,222.39x = 3,765,211.67
5. Step 5: Solve for x
   x = 3,765,211.67/2,222.39
6. Step 6: Final answer
   x = 1,694.22