Finding the Fourth Proportional to 2,222.42, 3,333.33 and 578.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,222.42 : 3,333.33 = 578.82 : x
2. Step 2: Convert to fraction form
   2,222.42/3,333.33 = 578.82/x
3. Step 3: Cross multiply
   2,222.42x = 3,333.33 × 578.82
4. Step 4: Simplify right side
   2,222.42x = 1,929,410.57
5. Step 5: Solve for x
   x = 1,929,410.57/2,222.42
6. Step 6: Final answer
   x = 868.16