Finding the Fourth Proportional to 2,018.28, 3,023.16 and 923.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.28 : 3,023.16 = 923.56 : x
2. Step 2: Convert to fraction form
   2,018.28/3,023.16 = 923.56/x
3. Step 3: Cross multiply
   2,018.28x = 3,023.16 × 923.56
4. Step 4: Simplify right side
   2,018.28x = 2,792,069.65
5. Step 5: Solve for x
   x = 2,792,069.65/2,018.28
6. Step 6: Final answer
   x = 1,383.39