Finding the Fourth Proportional to 3,409.49, 5,106.82 and 2,089.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,409.49 : 5,106.82 = 2,089.25 : x
2. Step 2: Convert to fraction form
   3,409.49/5,106.82 = 2,089.25/x
3. Step 3: Cross multiply
   3,409.49x = 5,106.82 × 2,089.25
4. Step 4: Simplify right side
   3,409.49x = 10,669,427.39
5. Step 5: Solve for x
   x = 10,669,427.39/3,409.49
6. Step 6: Final answer
   x = 3,129.33