Finding the Fourth Proportional to 2,222.82, 3,067.47 and 1,228.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,222.82 : 3,067.47 = 1,228.02 : x
2. Step 2: Convert to fraction form
   2,222.82/3,067.47 = 1,228.02/x
3. Step 3: Cross multiply
   2,222.82x = 3,067.47 × 1,228.02
4. Step 4: Simplify right side
   2,222.82x = 3,766,914.51
5. Step 5: Solve for x
   x = 3,766,914.51/2,222.82
6. Step 6: Final answer
   x = 1,694.66