Finding the Fourth Proportional to 3,889.10, 5,809.59 and 3,498.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,889.10 : 5,809.59 = 3,498.48 : x
2. Step 2: Convert to fraction form
   3,889.10/5,809.59 = 3,498.48/x
3. Step 3: Cross multiply
   3,889.10x = 5,809.59 × 3,498.48
4. Step 4: Simplify right side
   3,889.10x = 20,324,734.42
5. Step 5: Solve for x
   x = 20,324,734.42/3,889.10
6. Step 6: Final answer
   x = 5,226.08