Finding the Fourth Proportional to 2,018.18, 3,027.42 and 557.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.18 : 3,027.42 = 557.33 : x
2. Step 2: Convert to fraction form
   2,018.18/3,027.42 = 557.33/x
3. Step 3: Cross multiply
   2,018.18x = 3,027.42 × 557.33
4. Step 4: Simplify right side
   2,018.18x = 1,687,256.85
5. Step 5: Solve for x
   x = 1,687,256.85/2,018.18
6. Step 6: Final answer
   x = 836.03