Finding the Fourth Proportional to 2,044.63, 3,080.73 and 1,687.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,044.63 : 3,080.73 = 1,687.42 : x
2. Step 2: Convert to fraction form
   2,044.63/3,080.73 = 1,687.42/x
3. Step 3: Cross multiply
   2,044.63x = 3,080.73 × 1,687.42
4. Step 4: Simplify right side
   2,044.63x = 5,198,476.98
5. Step 5: Solve for x
   x = 5,198,476.98/2,044.63
6. Step 6: Final answer
   x = 2,542.50