Finding the Fourth Proportional to 2,018.86, 3,028.29 and 558.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.86 : 3,028.29 = 558.02 : x
2. Step 2: Convert to fraction form
   2,018.86/3,028.29 = 558.02/x
3. Step 3: Cross multiply
   2,018.86x = 3,028.29 × 558.02
4. Step 4: Simplify right side
   2,018.86x = 1,689,832.29
5. Step 5: Solve for x
   x = 1,689,832.29/2,018.86
6. Step 6: Final answer
   x = 837.02