Finding the Fourth Proportional to 2,222.30, 3,066.62 and 1,277.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,222.30 : 3,066.62 = 1,277.96 : x
2. Step 2: Convert to fraction form
   2,222.30/3,066.62 = 1,277.96/x
3. Step 3: Cross multiply
   2,222.30x = 3,066.62 × 1,277.96
4. Step 4: Simplify right side
   2,222.30x = 3,919,017.70
5. Step 5: Solve for x
   x = 3,919,017.70/2,222.30
6. Step 6: Final answer
   x = 1,763.50