Finding the Fourth Proportional to 3,196.80, 4,788.72 and 2,040.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,196.80 : 4,788.72 = 2,040.12 : x
2. Step 2: Convert to fraction form
   3,196.80/4,788.72 = 2,040.12/x
3. Step 3: Cross multiply
   3,196.80x = 4,788.72 × 2,040.12
4. Step 4: Simplify right side
   3,196.80x = 9,769,563.45
5. Step 5: Solve for x
   x = 9,769,563.45/3,196.80
6. Step 6: Final answer
   x = 3,056.04