Finding the Fourth Proportional to 3,693.24, 5,096.79 and 2,121.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,693.24 : 5,096.79 = 2,121.30 : x
2. Step 2: Convert to fraction form
   3,693.24/5,096.79 = 2,121.30/x
3. Step 3: Cross multiply
   3,693.24x = 5,096.79 × 2,121.30
4. Step 4: Simplify right side
   3,693.24x = 10,811,820.63
5. Step 5: Solve for x
   x = 10,811,820.63/3,693.24
6. Step 6: Final answer
   x = 2,927.46