Finding the Fourth Proportional to 2,018.37, 3,027.62 and 557.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.37 : 3,027.62 = 557.53 : x
2. Step 2: Convert to fraction form
   2,018.37/3,027.62 = 557.53/x
3. Step 3: Cross multiply
   2,018.37x = 3,027.62 × 557.53
4. Step 4: Simplify right side
   2,018.37x = 1,687,978.62
5. Step 5: Solve for x
   x = 1,687,978.62/2,018.37
6. Step 6: Final answer
   x = 836.31