Finding the Fourth Proportional to 2,645.48, 3,968.30 and 796.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,645.48 : 3,968.30 = 796.60 : x
2. Step 2: Convert to fraction form
   2,645.48/3,968.30 = 796.60/x
3. Step 3: Cross multiply
   2,645.48x = 3,968.30 × 796.60
4. Step 4: Simplify right side
   2,645.48x = 3,161,147.78
5. Step 5: Solve for x
   x = 3,161,147.78/2,645.48
6. Step 6: Final answer
   x = 1,194.92