Finding the Fourth Proportional to 2,019.78, 3,028.56 and 632.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.78 : 3,028.56 = 632.73 : x
2. Step 2: Convert to fraction form
   2,019.78/3,028.56 = 632.73/x
3. Step 3: Cross multiply
   2,019.78x = 3,028.56 × 632.73
4. Step 4: Simplify right side
   2,019.78x = 1,916,260.77
5. Step 5: Solve for x
   x = 1,916,260.77/2,019.78
6. Step 6: Final answer
   x = 948.75