Finding the Fourth Proportional to 2,018.90, 3,028.37 and 632.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.90 : 3,028.37 = 632.18 : x
2. Step 2: Convert to fraction form
   2,018.90/3,028.37 = 632.18/x
3. Step 3: Cross multiply
   2,018.90x = 3,028.37 × 632.18
4. Step 4: Simplify right side
   2,018.90x = 1,914,456.64
5. Step 5: Solve for x
   x = 1,914,456.64/2,018.90
6. Step 6: Final answer
   x = 948.27