Finding the Fourth Proportional to 3,885.92, 5,363.40 and 2,559.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,885.92 : 5,363.40 = 2,559.72 : x
2. Step 2: Convert to fraction form
   3,885.92/5,363.40 = 2,559.72/x
3. Step 3: Cross multiply
   3,885.92x = 5,363.40 × 2,559.72
4. Step 4: Simplify right side
   3,885.92x = 13,728,802.25
5. Step 5: Solve for x
   x = 13,728,802.25/3,885.92
6. Step 6: Final answer
   x = 3,532.96