Finding the Fourth Proportional to 2,018.42, 2,785.33 and 1,134.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.42 : 2,785.33 = 1,134.20 : x
2. Step 2: Convert to fraction form
   2,018.42/2,785.33 = 1,134.20/x
3. Step 3: Cross multiply
   2,018.42x = 2,785.33 × 1,134.20
4. Step 4: Simplify right side
   2,018.42x = 3,159,121.29
5. Step 5: Solve for x
   x = 3,159,121.29/2,018.42
6. Step 6: Final answer
   x = 1,565.15