Finding the Fourth Proportional to 2,578.05, 3,883.50 and 2,353.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,578.05 : 3,883.50 = 2,353.88 : x
2. Step 2: Convert to fraction form
   2,578.05/3,883.50 = 2,353.88/x
3. Step 3: Cross multiply
   2,578.05x = 3,883.50 × 2,353.88
4. Step 4: Simplify right side
   2,578.05x = 9,141,302.69
5. Step 5: Solve for x
   x = 9,141,302.69/2,578.05
6. Step 6: Final answer
   x = 3,545.82