Finding the Fourth Proportional to 2,018.45, 2,785.34 and 1,134.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.45 : 2,785.34 = 1,134.23 : x
2. Step 2: Convert to fraction form
   2,018.45/2,785.34 = 1,134.23/x
3. Step 3: Cross multiply
   2,018.45x = 2,785.34 × 1,134.23
4. Step 4: Simplify right side
   2,018.45x = 3,159,205.10
5. Step 5: Solve for x
   x = 3,159,205.10/2,018.45
6. Step 6: Final answer
   x = 1,565.16