Finding the Fourth Proportional to 2,681.05, 4,013.59 and 2,399.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,681.05 : 4,013.59 = 2,399.47 : x
2. Step 2: Convert to fraction form
   2,681.05/4,013.59 = 2,399.47/x
3. Step 3: Cross multiply
   2,681.05x = 4,013.59 × 2,399.47
4. Step 4: Simplify right side
   2,681.05x = 9,630,492.83
5. Step 5: Solve for x
   x = 9,630,492.83/2,681.05
6. Step 6: Final answer
   x = 3,592.06