Finding the Fourth Proportional to 2,650.66, 3,976.03 and 801.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,650.66 : 3,976.03 = 801.79 : x
2. Step 2: Convert to fraction form
   2,650.66/3,976.03 = 801.79/x
3. Step 3: Cross multiply
   2,650.66x = 3,976.03 × 801.79
4. Step 4: Simplify right side
   2,650.66x = 3,187,941.09
5. Step 5: Solve for x
   x = 3,187,941.09/2,650.66
6. Step 6: Final answer
   x = 1,202.70