Finding the Fourth Proportional to 3,695.57, 5,099.88 and 2,123.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,695.57 : 5,099.88 = 2,123.96 : x
2. Step 2: Convert to fraction form
   3,695.57/5,099.88 = 2,123.96/x
3. Step 3: Cross multiply
   3,695.57x = 5,099.88 × 2,123.96
4. Step 4: Simplify right side
   3,695.57x = 10,831,941.12
5. Step 5: Solve for x
   x = 10,831,941.12/3,695.57
6. Step 6: Final answer
   x = 2,931.06