Finding the Fourth Proportional to 2,646.25, 3,969.71 and 797.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,646.25 : 3,969.71 = 797.42 : x
2. Step 2: Convert to fraction form
   2,646.25/3,969.71 = 797.42/x
3. Step 3: Cross multiply
   2,646.25x = 3,969.71 × 797.42
4. Step 4: Simplify right side
   2,646.25x = 3,165,526.15
5. Step 5: Solve for x
   x = 3,165,526.15/2,646.25
6. Step 6: Final answer
   x = 1,196.23