Finding the Fourth Proportional to 2,645.58, 3,968.57 and 796.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,645.58 : 3,968.57 = 796.56 : x
2. Step 2: Convert to fraction form
   2,645.58/3,968.57 = 796.56/x
3. Step 3: Cross multiply
   2,645.58x = 3,968.57 × 796.56
4. Step 4: Simplify right side
   2,645.58x = 3,161,204.12
5. Step 5: Solve for x
   x = 3,161,204.12/2,645.58
6. Step 6: Final answer
   x = 1,194.90