Finding the Fourth Proportional to 2,222.76, 3,067.32 and 1,228.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,222.76 : 3,067.32 = 1,228.08 : x
2. Step 2: Convert to fraction form
   2,222.76/3,067.32 = 1,228.08/x
3. Step 3: Cross multiply
   2,222.76x = 3,067.32 × 1,228.08
4. Step 4: Simplify right side
   2,222.76x = 3,766,914.35
5. Step 5: Solve for x
   x = 3,766,914.35/2,222.76
6. Step 6: Final answer
   x = 1,694.70