Finding the Fourth Proportional to 2,645.38, 3,967.91 and 796.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,645.38 : 3,967.91 = 796.45 : x
2. Step 2: Convert to fraction form
   2,645.38/3,967.91 = 796.45/x
3. Step 3: Cross multiply
   2,645.38x = 3,967.91 × 796.45
4. Step 4: Simplify right side
   2,645.38x = 3,160,241.92
5. Step 5: Solve for x
   x = 3,160,241.92/2,645.38
6. Step 6: Final answer
   x = 1,194.63