Finding the Fourth Proportional to 3,458.67, 5,189.82 and 2,074.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,458.67 : 5,189.82 = 2,074.79 : x
2. Step 2: Convert to fraction form
   3,458.67/5,189.82 = 2,074.79/x
3. Step 3: Cross multiply
   3,458.67x = 5,189.82 × 2,074.79
4. Step 4: Simplify right side
   3,458.67x = 10,767,760.69
5. Step 5: Solve for x
   x = 10,767,760.69/3,458.67
6. Step 6: Final answer
   x = 3,113.27