Finding the Fourth Proportional to 3,695.10, 5,099.03 and 2,123.20

Step by Step Solution

1. Step 1: Write the proportion equation
   3,695.10 : 5,099.03 = 2,123.20 : x
2. Step 2: Convert to fraction form
   3,695.10/5,099.03 = 2,123.20/x
3. Step 3: Cross multiply
   3,695.10x = 5,099.03 × 2,123.20
4. Step 4: Simplify right side
   3,695.10x = 10,826,249.88
5. Step 5: Solve for x
   x = 10,826,249.88/3,695.10
6. Step 6: Final answer
   x = 2,929.90