Finding the Fourth Proportional to 3,695.50, 5,099.79 and 2,039.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,695.50 : 5,099.79 = 2,039.50 : x
2. Step 2: Convert to fraction form
   3,695.50/5,099.79 = 2,039.50/x
3. Step 3: Cross multiply
   3,695.50x = 5,099.79 × 2,039.50
4. Step 4: Simplify right side
   3,695.50x = 10,401,021.71
5. Step 5: Solve for x
   x = 10,401,021.71/3,695.50
6. Step 6: Final answer
   x = 2,814.51