Finding the Fourth Proportional to 3,196.13, 4,412.78 and 2,448.75

Step by Step Solution

1. Step 1: Write the proportion equation
   3,196.13 : 4,412.78 = 2,448.75 : x
2. Step 2: Convert to fraction form
   3,196.13/4,412.78 = 2,448.75/x
3. Step 3: Cross multiply
   3,196.13x = 4,412.78 × 2,448.75
4. Step 4: Simplify right side
   3,196.13x = 10,805,795.03
5. Step 5: Solve for x
   x = 10,805,795.03/3,196.13
6. Step 6: Final answer
   x = 3,380.90