Finding the Fourth Proportional to 3,965.68, 5,471.78 and 2,372.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,965.68 : 5,471.78 = 2,372.10 : x
2. Step 2: Convert to fraction form
   3,965.68/5,471.78 = 2,372.10/x
3. Step 3: Cross multiply
   3,965.68x = 5,471.78 × 2,372.10
4. Step 4: Simplify right side
   3,965.68x = 12,979,609.34
5. Step 5: Solve for x
   x = 12,979,609.34/3,965.68
6. Step 6: Final answer
   x = 3,272.98