Finding the Fourth Proportional to 2,645.43, 3,966.98 and 796.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,645.43 : 3,966.98 = 796.20 : x
2. Step 2: Convert to fraction form
   2,645.43/3,966.98 = 796.20/x
3. Step 3: Cross multiply
   2,645.43x = 3,966.98 × 796.20
4. Step 4: Simplify right side
   2,645.43x = 3,158,490.62
5. Step 5: Solve for x
   x = 3,158,490.62/2,645.43
6. Step 6: Final answer
   x = 1,193.94