Finding the Fourth Proportional to 2,668.84, 3,682.56 and 1,489.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,668.84 : 3,682.56 = 1,489.72 : x
2. Step 2: Convert to fraction form
   2,668.84/3,682.56 = 1,489.72/x
3. Step 3: Cross multiply
   2,668.84x = 3,682.56 × 1,489.72
4. Step 4: Simplify right side
   2,668.84x = 5,485,983.28
5. Step 5: Solve for x
   x = 5,485,983.28/2,668.84
6. Step 6: Final answer
   x = 2,055.57