Finding the Fourth Proportional to 2,399.47, 3,604.65 and 2,071.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,399.47 : 3,604.65 = 2,071.42 : x
2. Step 2: Convert to fraction form
   2,399.47/3,604.65 = 2,071.42/x
3. Step 3: Cross multiply
   2,399.47x = 3,604.65 × 2,071.42
4. Step 4: Simplify right side
   2,399.47x = 7,466,744.10
5. Step 5: Solve for x
   x = 7,466,744.10/2,399.47
6. Step 6: Final answer
   x = 3,111.83