Finding the Fourth Proportional to 2,650.83, 3,976.38 and 802.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,650.83 : 3,976.38 = 802.20 : x
2. Step 2: Convert to fraction form
   2,650.83/3,976.38 = 802.20/x
3. Step 3: Cross multiply
   2,650.83x = 3,976.38 × 802.20
4. Step 4: Simplify right side
   2,650.83x = 3,189,852.04
5. Step 5: Solve for x
   x = 3,189,852.04/2,650.83
6. Step 6: Final answer
   x = 1,203.34