Finding the Fourth Proportional to 2,018.21, 2,785.41 and 1,134.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.21 : 2,785.41 = 1,134.09 : x
2. Step 2: Convert to fraction form
   2,018.21/2,785.41 = 1,134.09/x
3. Step 3: Cross multiply
   2,018.21x = 2,785.41 × 1,134.09
4. Step 4: Simplify right side
   2,018.21x = 3,158,905.63
5. Step 5: Solve for x
   x = 3,158,905.63/2,018.21
6. Step 6: Final answer
   x = 1,565.21