Finding the Fourth Proportional to 3,983.68, 5,499.24 and 2,391.04

Step by Step Solution

1. Step 1: Write the proportion equation
   3,983.68 : 5,499.24 = 2,391.04 : x
2. Step 2: Convert to fraction form
   3,983.68/5,499.24 = 2,391.04/x
3. Step 3: Cross multiply
   3,983.68x = 5,499.24 × 2,391.04
4. Step 4: Simplify right side
   3,983.68x = 13,148,902.81
5. Step 5: Solve for x
   x = 13,148,902.81/3,983.68
6. Step 6: Final answer
   x = 3,300.69