Finding the Fourth Proportional to 2,018.16, 3,028.05 and 923.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.16 : 3,028.05 = 923.04 : x
2. Step 2: Convert to fraction form
   2,018.16/3,028.05 = 923.04/x
3. Step 3: Cross multiply
   2,018.16x = 3,028.05 × 923.04
4. Step 4: Simplify right side
   2,018.16x = 2,795,011.27
5. Step 5: Solve for x
   x = 2,795,011.27/2,018.16
6. Step 6: Final answer
   x = 1,384.93