Finding the Fourth Proportional to 2,010.57, 3,016.34 and 1,020.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,010.57 : 3,016.34 = 1,020.95 : x
2. Step 2: Convert to fraction form
   2,010.57/3,016.34 = 1,020.95/x
3. Step 3: Cross multiply
   2,010.57x = 3,016.34 × 1,020.95
4. Step 4: Simplify right side
   2,010.57x = 3,079,542.42
5. Step 5: Solve for x
   x = 3,079,542.42/2,010.57
6. Step 6: Final answer
   x = 1,531.68