Finding the Fourth Proportional to 2,868.69, 3,958.80 and 1,674.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,868.69 : 3,958.80 = 1,674.50 : x
2. Step 2: Convert to fraction form
   2,868.69/3,958.80 = 1,674.50/x
3. Step 3: Cross multiply
   2,868.69x = 3,958.80 × 1,674.50
4. Step 4: Simplify right side
   2,868.69x = 6,629,010.60
5. Step 5: Solve for x
   x = 6,629,010.60/2,868.69
6. Step 6: Final answer
   x = 2,310.81