Finding the Fourth Proportional to 3,340.62, 5,007.44 and 1,118.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,340.62 : 5,007.44 = 1,118.89 : x
2. Step 2: Convert to fraction form
   3,340.62/5,007.44 = 1,118.89/x
3. Step 3: Cross multiply
   3,340.62x = 5,007.44 × 1,118.89
4. Step 4: Simplify right side
   3,340.62x = 5,602,777.30
5. Step 5: Solve for x
   x = 5,602,777.30/3,340.62
6. Step 6: Final answer
   x = 1,677.17