Finding the Fourth Proportional to 2,680.72, 4,022.70 and 1,037.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,680.72 : 4,022.70 = 1,037.42 : x
2. Step 2: Convert to fraction form
   2,680.72/4,022.70 = 1,037.42/x
3. Step 3: Cross multiply
   2,680.72x = 4,022.70 × 1,037.42
4. Step 4: Simplify right side
   2,680.72x = 4,173,229.43
5. Step 5: Solve for x
   x = 4,173,229.43/2,680.72
6. Step 6: Final answer
   x = 1,556.76