Finding the Fourth Proportional to 2,018.61, 2,785.53 and 1,134.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.61 : 2,785.53 = 1,134.24 : x
2. Step 2: Convert to fraction form
   2,018.61/2,785.53 = 1,134.24/x
3. Step 3: Cross multiply
   2,018.61x = 2,785.53 × 1,134.24
4. Step 4: Simplify right side
   2,018.61x = 3,159,459.55
5. Step 5: Solve for x
   x = 3,159,459.55/2,018.61
6. Step 6: Final answer
   x = 1,565.17