Finding the Fourth Proportional to 2,016.42, 3,024.98 and 920.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,016.42 : 3,024.98 = 920.89 : x
2. Step 2: Convert to fraction form
   2,016.42/3,024.98 = 920.89/x
3. Step 3: Cross multiply
   2,016.42x = 3,024.98 × 920.89
4. Step 4: Simplify right side
   2,016.42x = 2,785,669.23
5. Step 5: Solve for x
   x = 2,785,669.23/2,016.42
6. Step 6: Final answer
   x = 1,381.50