Finding the Fourth Proportional to 1,320.22, 1,821.72 and 796.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,320.22 : 1,821.72 = 796.06 : x
2. Step 2: Convert to fraction form
   1,320.22/1,821.72 = 796.06/x
3. Step 3: Cross multiply
   1,320.22x = 1,821.72 × 796.06
4. Step 4: Simplify right side
   1,320.22x = 1,450,198.42
5. Step 5: Solve for x
   x = 1,450,198.42/1,320.22
6. Step 6: Final answer
   x = 1,098.45