Finding the Fourth Proportional to 2,222.33, 3,334.56 and 1,389.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,222.33 : 3,334.56 = 1,389.17 : x
2. Step 2: Convert to fraction form
   2,222.33/3,334.56 = 1,389.17/x
3. Step 3: Cross multiply
   2,222.33x = 3,334.56 × 1,389.17
4. Step 4: Simplify right side
   2,222.33x = 4,632,261.43
5. Step 5: Solve for x
   x = 4,632,261.43/2,222.33
6. Step 6: Final answer
   x = 2,084.42