Finding the Fourth Proportional to 3,404.34, 4,694.85 and 2,145.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,404.34 : 4,694.85 = 2,145.06 : x
2. Step 2: Convert to fraction form
   3,404.34/4,694.85 = 2,145.06/x
3. Step 3: Cross multiply
   3,404.34x = 4,694.85 × 2,145.06
4. Step 4: Simplify right side
   3,404.34x = 10,070,734.94
5. Step 5: Solve for x
   x = 10,070,734.94/3,404.34
6. Step 6: Final answer
   x = 2,958.20