Finding the Fourth Proportional to 2,018.42, 3,025.29 and 922.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.42 : 3,025.29 = 922.89 : x
2. Step 2: Convert to fraction form
   2,018.42/3,025.29 = 922.89/x
3. Step 3: Cross multiply
   2,018.42x = 3,025.29 × 922.89
4. Step 4: Simplify right side
   2,018.42x = 2,792,009.89
5. Step 5: Solve for x
   x = 2,792,009.89/2,018.42
6. Step 6: Final answer
   x = 1,383.27