Finding the Fourth Proportional to 2,680.43, 3,698.90 and 1,485.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,680.43 : 3,698.90 = 1,485.37 : x
2. Step 2: Convert to fraction form
   2,680.43/3,698.90 = 1,485.37/x
3. Step 3: Cross multiply
   2,680.43x = 3,698.90 × 1,485.37
4. Step 4: Simplify right side
   2,680.43x = 5,494,218.42
5. Step 5: Solve for x
   x = 5,494,218.42/2,680.43
6. Step 6: Final answer
   x = 2,049.76