Finding the Fourth Proportional to 3,426.24, 5,124.72 and 2,106.74

Step by Step Solution

1. Step 1: Write the proportion equation
   3,426.24 : 5,124.72 = 2,106.74 : x
2. Step 2: Convert to fraction form
   3,426.24/5,124.72 = 2,106.74/x
3. Step 3: Cross multiply
   3,426.24x = 5,124.72 × 2,106.74
4. Step 4: Simplify right side
   3,426.24x = 10,796,452.61
5. Step 5: Solve for x
   x = 10,796,452.61/3,426.24
6. Step 6: Final answer
   x = 3,151.11