Finding the Fourth Proportional to 2,020.89, 3,031.73 and 722.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,020.89 : 3,031.73 = 722.33 : x
2. Step 2: Convert to fraction form
   2,020.89/3,031.73 = 722.33/x
3. Step 3: Cross multiply
   2,020.89x = 3,031.73 × 722.33
4. Step 4: Simplify right side
   2,020.89x = 2,189,890.76
5. Step 5: Solve for x
   x = 2,189,890.76/2,020.89
6. Step 6: Final answer
   x = 1,083.63