Finding the Fourth Proportional to 3,162.43, 4,742.43 and 2,185.57

Step by Step Solution

1. Step 1: Write the proportion equation
   3,162.43 : 4,742.43 = 2,185.57 : x
2. Step 2: Convert to fraction form
   3,162.43/4,742.43 = 2,185.57/x
3. Step 3: Cross multiply
   3,162.43x = 4,742.43 × 2,185.57
4. Step 4: Simplify right side
   3,162.43x = 10,364,912.74
5. Step 5: Solve for x
   x = 10,364,912.74/3,162.43
6. Step 6: Final answer
   x = 3,277.52