Finding the Fourth Proportional to 3,311.89, 4,964.40 and 1,119.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,311.89 : 4,964.40 = 1,119.88 : x
2. Step 2: Convert to fraction form
   3,311.89/4,964.40 = 1,119.88/x
3. Step 3: Cross multiply
   3,311.89x = 4,964.40 × 1,119.88
4. Step 4: Simplify right side
   3,311.89x = 5,559,532.27
5. Step 5: Solve for x
   x = 5,559,532.27/3,311.89
6. Step 6: Final answer
   x = 1,678.66