Finding the Fourth Proportional to 6,439.27, 9,656.82 and 2,055.69

Step by Step Solution

1. Step 1: Write the proportion equation
   6,439.27 : 9,656.82 = 2,055.69 : x
2. Step 2: Convert to fraction form
   6,439.27/9,656.82 = 2,055.69/x
3. Step 3: Cross multiply
   6,439.27x = 9,656.82 × 2,055.69
4. Step 4: Simplify right side
   6,439.27x = 19,851,428.31
5. Step 5: Solve for x
   x = 19,851,428.31/6,439.27
6. Step 6: Final answer
   x = 3,082.87