Finding the Fourth Proportional to 3,245.42, 4,861.72 and 2,146.46

Step by Step Solution

1. Step 1: Write the proportion equation
   3,245.42 : 4,861.72 = 2,146.46 : x
2. Step 2: Convert to fraction form
   3,245.42/4,861.72 = 2,146.46/x
3. Step 3: Cross multiply
   3,245.42x = 4,861.72 × 2,146.46
4. Step 4: Simplify right side
   3,245.42x = 10,435,465.89
5. Step 5: Solve for x
   x = 10,435,465.89/3,245.42
6. Step 6: Final answer
   x = 3,215.44