Finding the Fourth Proportional to 2,109, 3,164.34 and 1,068.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109 : 3,164.34 = 1,068.44 : x
2. Step 2: Convert to fraction form
   2,109/3,164.34 = 1,068.44/x
3. Step 3: Cross multiply
   2,109x = 3,164.34 × 1,068.44
4. Step 4: Simplify right side
   2,109x = 3,380,907.43
5. Step 5: Solve for x
   x = 3,380,907.43/2,109
6. Step 6: Final answer
   x = 1,603.09