Finding the Fourth Proportional to 2,581.74, 3,873.69 and 849.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,581.74 : 3,873.69 = 849.42 : x
2. Step 2: Convert to fraction form
   2,581.74/3,873.69 = 849.42/x
3. Step 3: Cross multiply
   2,581.74x = 3,873.69 × 849.42
4. Step 4: Simplify right side
   2,581.74x = 3,290,389.76
5. Step 5: Solve for x
   x = 3,290,389.76/2,581.74
6. Step 6: Final answer
   x = 1,274.49