Finding the Fourth Proportional to 2,016.28, 3,024.70 and 920.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,016.28 : 3,024.70 = 920.92 : x
2. Step 2: Convert to fraction form
   2,016.28/3,024.70 = 920.92/x
3. Step 3: Cross multiply
   2,016.28x = 3,024.70 × 920.92
4. Step 4: Simplify right side
   2,016.28x = 2,785,506.72
5. Step 5: Solve for x
   x = 2,785,506.72/2,016.28
6. Step 6: Final answer
   x = 1,381.51