Finding the Fourth Proportional to 3,456.34, 5,181.78 and 3,452.09

Step by Step Solution

1. Step 1: Write the proportion equation
   3,456.34 : 5,181.78 = 3,452.09 : x
2. Step 2: Convert to fraction form
   3,456.34/5,181.78 = 3,452.09/x
3. Step 3: Cross multiply
   3,456.34x = 5,181.78 × 3,452.09
4. Step 4: Simplify right side
   3,456.34x = 17,887,970.92
5. Step 5: Solve for x
   x = 17,887,970.92/3,456.34
6. Step 6: Final answer
   x = 5,175.41