Finding the Fourth Proportional to 2,018.68, 2,785.74 and 1,134.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.68 : 2,785.74 = 1,134.56 : x
2. Step 2: Convert to fraction form
   2,018.68/2,785.74 = 1,134.56/x
3. Step 3: Cross multiply
   2,018.68x = 2,785.74 × 1,134.56
4. Step 4: Simplify right side
   2,018.68x = 3,160,589.17
5. Step 5: Solve for x
   x = 3,160,589.17/2,018.68
6. Step 6: Final answer
   x = 1,565.67