Finding the Fourth Proportional to 3,673.89, 5,479.82 and 3,119.85

Step by Step Solution

1. Step 1: Write the proportion equation
   3,673.89 : 5,479.82 = 3,119.85 : x
2. Step 2: Convert to fraction form
   3,673.89/5,479.82 = 3,119.85/x
3. Step 3: Cross multiply
   3,673.89x = 5,479.82 × 3,119.85
4. Step 4: Simplify right side
   3,673.89x = 17,096,212.53
5. Step 5: Solve for x
   x = 17,096,212.53/3,673.89
6. Step 6: Final answer
   x = 4,653.44