Finding the Fourth Proportional to 2,605.87, 3,910.77 and 2,019.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,605.87 : 3,910.77 = 2,019.44 : x
2. Step 2: Convert to fraction form
   2,605.87/3,910.77 = 2,019.44/x
3. Step 3: Cross multiply
   2,605.87x = 3,910.77 × 2,019.44
4. Step 4: Simplify right side
   2,605.87x = 7,897,535.72
5. Step 5: Solve for x
   x = 7,897,535.72/2,605.87
6. Step 6: Final answer
   x = 3,030.68