Finding the Fourth Proportional to 3,695.21, 5,099.93 and 2,123

Step by Step Solution

1. Step 1: Write the proportion equation
   3,695.21 : 5,099.93 = 2,123 : x
2. Step 2: Convert to fraction form
   3,695.21/5,099.93 = 2,123/x
3. Step 3: Cross multiply
   3,695.21x = 5,099.93 × 2,123
4. Step 4: Simplify right side
   3,695.21x = 10,827,151.39
5. Step 5: Solve for x
   x = 10,827,151.39/3,695.21
6. Step 6: Final answer
   x = 2,930.05