Finding the Fourth Proportional to 3,471.56, 4,790.78 and 2,144.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,471.56 : 4,790.78 = 2,144.96 : x
2. Step 2: Convert to fraction form
   3,471.56/4,790.78 = 2,144.96/x
3. Step 3: Cross multiply
   3,471.56x = 4,790.78 × 2,144.96
4. Step 4: Simplify right side
   3,471.56x = 10,276,031.47
5. Step 5: Solve for x
   x = 10,276,031.47/3,471.56
6. Step 6: Final answer
   x = 2,960.06