Finding the Fourth Proportional to 2,020.82, 3,032.44 and 866.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,020.82 : 3,032.44 = 866.57 : x
2. Step 2: Convert to fraction form
   2,020.82/3,032.44 = 866.57/x
3. Step 3: Cross multiply
   2,020.82x = 3,032.44 × 866.57
4. Step 4: Simplify right side
   2,020.82x = 2,627,802.04
5. Step 5: Solve for x
   x = 2,627,802.04/2,020.82
6. Step 6: Final answer
   x = 1,300.37