Finding the Fourth Proportional to 2,604.69, 3,907.71 and 1,919.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,604.69 : 3,907.71 = 1,919.52 : x
2. Step 2: Convert to fraction form
   2,604.69/3,907.71 = 1,919.52/x
3. Step 3: Cross multiply
   2,604.69x = 3,907.71 × 1,919.52
4. Step 4: Simplify right side
   2,604.69x = 7,500,927.50
5. Step 5: Solve for x
   x = 7,500,927.50/2,604.69
6. Step 6: Final answer
   x = 2,879.78