Finding the Fourth Proportional to 2,119.56, 3,179.88 and 966.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,119.56 : 3,179.88 = 966.12 : x
2. Step 2: Convert to fraction form
   2,119.56/3,179.88 = 966.12/x
3. Step 3: Cross multiply
   2,119.56x = 3,179.88 × 966.12
4. Step 4: Simplify right side
   2,119.56x = 3,072,145.67
5. Step 5: Solve for x
   x = 3,072,145.67/2,119.56
6. Step 6: Final answer
   x = 1,449.43