Finding the Fourth Proportional to 2,016.39, 3,023.02 and 920.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,016.39 : 3,023.02 = 920.46 : x
2. Step 2: Convert to fraction form
   2,016.39/3,023.02 = 920.46/x
3. Step 3: Cross multiply
   2,016.39x = 3,023.02 × 920.46
4. Step 4: Simplify right side
   2,016.39x = 2,782,581.48
5. Step 5: Solve for x
   x = 2,782,581.48/2,016.39
6. Step 6: Final answer
   x = 1,379.98