Finding the Fourth Proportional to 3,205.12, 4,801.46 and 2,106.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,205.12 : 4,801.46 = 2,106.15 : x
2. Step 2: Convert to fraction form
   3,205.12/4,801.46 = 2,106.15/x
3. Step 3: Cross multiply
   3,205.12x = 4,801.46 × 2,106.15
4. Step 4: Simplify right side
   3,205.12x = 10,112,594.98
5. Step 5: Solve for x
   x = 10,112,594.98/3,205.12
6. Step 6: Final answer
   x = 3,155.14