Finding the Fourth Proportional to 2,668.72, 3,985.56 and 2,274.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,668.72 : 3,985.56 = 2,274.52 : x
2. Step 2: Convert to fraction form
   2,668.72/3,985.56 = 2,274.52/x
3. Step 3: Cross multiply
   2,668.72x = 3,985.56 × 2,274.52
4. Step 4: Simplify right side
   2,668.72x = 9,065,235.93
5. Step 5: Solve for x
   x = 9,065,235.93/2,668.72
6. Step 6: Final answer
   x = 3,396.85