Finding the Fourth Proportional to 3,659.30, 5,049.69 and 2,087.09

Step by Step Solution

1. Step 1: Write the proportion equation
   3,659.30 : 5,049.69 = 2,087.09 : x
2. Step 2: Convert to fraction form
   3,659.30/5,049.69 = 2,087.09/x
3. Step 3: Cross multiply
   3,659.30x = 5,049.69 × 2,087.09
4. Step 4: Simplify right side
   3,659.30x = 10,539,157.50
5. Step 5: Solve for x
   x = 10,539,157.50/3,659.30
6. Step 6: Final answer
   x = 2,880.10