Finding the Fourth Proportional to 2,018.91, 3,027.82 and 558.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.91 : 3,027.82 = 558.14 : x
2. Step 2: Convert to fraction form
   2,018.91/3,027.82 = 558.14/x
3. Step 3: Cross multiply
   2,018.91x = 3,027.82 × 558.14
4. Step 4: Simplify right side
   2,018.91x = 1,689,938.49
5. Step 5: Solve for x
   x = 1,689,938.49/2,018.91
6. Step 6: Final answer
   x = 837.06