Finding the Fourth Proportional to 3,903.29, 5,388.77 and 2,580.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,903.29 : 5,388.77 = 2,580.83 : x
2. Step 2: Convert to fraction form
   3,903.29/5,388.77 = 2,580.83/x
3. Step 3: Cross multiply
   3,903.29x = 5,388.77 × 2,580.83
4. Step 4: Simplify right side
   3,903.29x = 13,907,519.20
5. Step 5: Solve for x
   x = 13,907,519.20/3,903.29
6. Step 6: Final answer
   x = 3,563.02