Finding the Fourth Proportional to 3,496.76, 4,827.78 and 2,171.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,496.76 : 4,827.78 = 2,171.88 : x
2. Step 2: Convert to fraction form
   3,496.76/4,827.78 = 2,171.88/x
3. Step 3: Cross multiply
   3,496.76x = 4,827.78 × 2,171.88
4. Step 4: Simplify right side
   3,496.76x = 10,485,358.83
5. Step 5: Solve for x
   x = 10,485,358.83/3,496.76
6. Step 6: Final answer
   x = 2,998.59