Finding the Fourth Proportional to 2,778.78, 3,834.72 and 1,519.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,778.78 : 3,834.72 = 1,519.84 : x
2. Step 2: Convert to fraction form
   2,778.78/3,834.72 = 1,519.84/x
3. Step 3: Cross multiply
   2,778.78x = 3,834.72 × 1,519.84
4. Step 4: Simplify right side
   2,778.78x = 5,828,160.84
5. Step 5: Solve for x
   x = 5,828,160.84/2,778.78
6. Step 6: Final answer
   x = 2,097.38