Finding the Fourth Proportional to 3,210.46, 4,806.56 and 2,111.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,210.46 : 4,806.56 = 2,111.52 : x
2. Step 2: Convert to fraction form
   3,210.46/4,806.56 = 2,111.52/x
3. Step 3: Cross multiply
   3,210.46x = 4,806.56 × 2,111.52
4. Step 4: Simplify right side
   3,210.46x = 10,149,147.57
5. Step 5: Solve for x
   x = 10,149,147.57/3,210.46
6. Step 6: Final answer
   x = 3,161.28