Finding the Fourth Proportional to 3,694.87, 5,099.39 and 2,123.47

Step by Step Solution

1. Step 1: Write the proportion equation
   3,694.87 : 5,099.39 = 2,123.47 : x
2. Step 2: Convert to fraction form
   3,694.87/5,099.39 = 2,123.47/x
3. Step 3: Cross multiply
   3,694.87x = 5,099.39 × 2,123.47
4. Step 4: Simplify right side
   3,694.87x = 10,828,401.68
5. Step 5: Solve for x
   x = 10,828,401.68/3,694.87
6. Step 6: Final answer
   x = 2,930.66