Finding the Fourth Proportional to 2,645.54, 3,968.15 and 796.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,645.54 : 3,968.15 = 796.61 : x
2. Step 2: Convert to fraction form
   2,645.54/3,968.15 = 796.61/x
3. Step 3: Cross multiply
   2,645.54x = 3,968.15 × 796.61
4. Step 4: Simplify right side
   2,645.54x = 3,161,044.15
5. Step 5: Solve for x
   x = 3,161,044.15/2,645.54
6. Step 6: Final answer
   x = 1,194.86