Finding the Fourth Proportional to 3,956.58, 5,460.06 and 2,188.14

Step by Step Solution

1. Step 1: Write the proportion equation
   3,956.58 : 5,460.06 = 2,188.14 : x
2. Step 2: Convert to fraction form
   3,956.58/5,460.06 = 2,188.14/x
3. Step 3: Cross multiply
   3,956.58x = 5,460.06 × 2,188.14
4. Step 4: Simplify right side
   3,956.58x = 11,947,375.69
5. Step 5: Solve for x
   x = 11,947,375.69/3,956.58
6. Step 6: Final answer
   x = 3,019.62