Finding the Fourth Proportional to 2,020.83, 3,031.42 and 722.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,020.83 : 3,031.42 = 722.31 : x
2. Step 2: Convert to fraction form
   2,020.83/3,031.42 = 722.31/x
3. Step 3: Cross multiply
   2,020.83x = 3,031.42 × 722.31
4. Step 4: Simplify right side
   2,020.83x = 2,189,624.98
5. Step 5: Solve for x
   x = 2,189,624.98/2,020.83
6. Step 6: Final answer
   x = 1,083.53