Finding the Fourth Proportional to 2,720.11, 4,078.83 and 1,404.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,720.11 : 4,078.83 = 1,404.49 : x
2. Step 2: Convert to fraction form
   2,720.11/4,078.83 = 1,404.49/x
3. Step 3: Cross multiply
   2,720.11x = 4,078.83 × 1,404.49
4. Step 4: Simplify right side
   2,720.11x = 5,728,674.71
5. Step 5: Solve for x
   x = 5,728,674.71/2,720.11
6. Step 6: Final answer
   x = 2,106.05