Finding the Fourth Proportional to 2,556.82, 3,831.92 and 1,074.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,556.82 : 3,831.92 = 1,074.36 : x
2. Step 2: Convert to fraction form
   2,556.82/3,831.92 = 1,074.36/x
3. Step 3: Cross multiply
   2,556.82x = 3,831.92 × 1,074.36
4. Step 4: Simplify right side
   2,556.82x = 4,116,861.57
5. Step 5: Solve for x
   x = 4,116,861.57/2,556.82
6. Step 6: Final answer
   x = 1,610.15