Finding the Fourth Proportional to 2,043.63, 3,079.22 and 1,686.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,043.63 : 3,079.22 = 1,686.42 : x
2. Step 2: Convert to fraction form
   2,043.63/3,079.22 = 1,686.42/x
3. Step 3: Cross multiply
   2,043.63x = 3,079.22 × 1,686.42
4. Step 4: Simplify right side
   2,043.63x = 5,192,849.76
5. Step 5: Solve for x
   x = 5,192,849.76/2,043.63
6. Step 6: Final answer
   x = 2,540.99