Finding the Fourth Proportional to 2,406.88, 3,320.49 and 1,619.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,406.88 : 3,320.49 = 1,619.56 : x
2. Step 2: Convert to fraction form
   2,406.88/3,320.49 = 1,619.56/x
3. Step 3: Cross multiply
   2,406.88x = 3,320.49 × 1,619.56
4. Step 4: Simplify right side
   2,406.88x = 5,377,732.78
5. Step 5: Solve for x
   x = 5,377,732.78/2,406.88
6. Step 6: Final answer
   x = 2,234.32