Finding the Fourth Proportional to 3,100.72, 4,626.92 and 2,824.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,100.72 : 4,626.92 = 2,824.72 : x
2. Step 2: Convert to fraction form
   3,100.72/4,626.92 = 2,824.72/x
3. Step 3: Cross multiply
   3,100.72x = 4,626.92 × 2,824.72
4. Step 4: Simplify right side
   3,100.72x = 13,069,753.46
5. Step 5: Solve for x
   x = 13,069,753.46/3,100.72
6. Step 6: Final answer
   x = 4,215.07