Finding the Fourth Proportional to 2,018.97, 2,787.11 and 1,356.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.97 : 2,787.11 = 1,356.27 : x
2. Step 2: Convert to fraction form
   2,018.97/2,787.11 = 1,356.27/x
3. Step 3: Cross multiply
   2,018.97x = 2,787.11 × 1,356.27
4. Step 4: Simplify right side
   2,018.97x = 3,780,066.90
5. Step 5: Solve for x
   x = 3,780,066.90/2,018.97
6. Step 6: Final answer
   x = 1,872.27