Finding the Fourth Proportional to 3,404.12, 5,106.72 and 2,107.04

Step by Step Solution

1. Step 1: Write the proportion equation
   3,404.12 : 5,106.72 = 2,107.04 : x
2. Step 2: Convert to fraction form
   3,404.12/5,106.72 = 2,107.04/x
3. Step 3: Cross multiply
   3,404.12x = 5,106.72 × 2,107.04
4. Step 4: Simplify right side
   3,404.12x = 10,760,063.31
5. Step 5: Solve for x
   x = 10,760,063.31/3,404.12
6. Step 6: Final answer
   x = 3,160.89