Finding the Fourth Proportional to 2,778.76, 3,834.56 and 1,519.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,778.76 : 3,834.56 = 1,519.80 : x
2. Step 2: Convert to fraction form
   2,778.76/3,834.56 = 1,519.80/x
3. Step 3: Cross multiply
   2,778.76x = 3,834.56 × 1,519.80
4. Step 4: Simplify right side
   2,778.76x = 5,827,764.29
5. Step 5: Solve for x
   x = 5,827,764.29/2,778.76
6. Step 6: Final answer
   x = 2,097.25