Finding the Fourth Proportional to 2,018.90, 2,786.07 and 1,134.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.90 : 2,786.07 = 1,134.71 : x
2. Step 2: Convert to fraction form
   2,018.90/2,786.07 = 1,134.71/x
3. Step 3: Cross multiply
   2,018.90x = 2,786.07 × 1,134.71
4. Step 4: Simplify right side
   2,018.90x = 3,161,363.30
5. Step 5: Solve for x
   x = 3,161,363.30/2,018.90
6. Step 6: Final answer
   x = 1,565.89