Finding the Fourth Proportional to 3,156.50, 4,348.72 and 2,493.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,156.50 : 4,348.72 = 2,493.12 : x
2. Step 2: Convert to fraction form
   3,156.50/4,348.72 = 2,493.12/x
3. Step 3: Cross multiply
   3,156.50x = 4,348.72 × 2,493.12
4. Step 4: Simplify right side
   3,156.50x = 10,841,880.81
5. Step 5: Solve for x
   x = 10,841,880.81/3,156.50
6. Step 6: Final answer
   x = 3,434.78