Finding the Fourth Proportional to 3,196.39, 4,788.23 and 2,499.80

Step by Step Solution

1. Step 1: Write the proportion equation
   3,196.39 : 4,788.23 = 2,499.80 : x
2. Step 2: Convert to fraction form
   3,196.39/4,788.23 = 2,499.80/x
3. Step 3: Cross multiply
   3,196.39x = 4,788.23 × 2,499.80
4. Step 4: Simplify right side
   3,196.39x = 11,969,631.98
5. Step 5: Solve for x
   x = 11,969,631.98/3,196.39
6. Step 6: Final answer
   x = 3,744.73