Finding the Fourth Proportional to 2,509.05, 3,454.38 and 2,066.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,509.05 : 3,454.38 = 2,066.16 : x
2. Step 2: Convert to fraction form
   2,509.05/3,454.38 = 2,066.16/x
3. Step 3: Cross multiply
   2,509.05x = 3,454.38 × 2,066.16
4. Step 4: Simplify right side
   2,509.05x = 7,137,301.78
5. Step 5: Solve for x
   x = 7,137,301.78/2,509.05
6. Step 6: Final answer
   x = 2,844.62