Finding the Fourth Proportional to 3,404.38, 5,085.88 and 2,161.84

Step by Step Solution

1. Step 1: Write the proportion equation
   3,404.38 : 5,085.88 = 2,161.84 : x
2. Step 2: Convert to fraction form
   3,404.38/5,085.88 = 2,161.84/x
3. Step 3: Cross multiply
   3,404.38x = 5,085.88 × 2,161.84
4. Step 4: Simplify right side
   3,404.38x = 10,994,858.82
5. Step 5: Solve for x
   x = 10,994,858.82/3,404.38
6. Step 6: Final answer
   x = 3,229.62