Finding the Fourth Proportional to 3,591.09, 5,365.71 and 2,650.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,591.09 : 5,365.71 = 2,650.05 : x
2. Step 2: Convert to fraction form
   3,591.09/5,365.71 = 2,650.05/x
3. Step 3: Cross multiply
   3,591.09x = 5,365.71 × 2,650.05
4. Step 4: Simplify right side
   3,591.09x = 14,219,399.79
5. Step 5: Solve for x
   x = 14,219,399.79/3,591.09
6. Step 6: Final answer
   x = 3,959.63