Finding the Fourth Proportional to 2,395.80, 3,306.42 and 1,556.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,395.80 : 3,306.42 = 1,556.92 : x
2. Step 2: Convert to fraction form
   2,395.80/3,306.42 = 1,556.92/x
3. Step 3: Cross multiply
   2,395.80x = 3,306.42 × 1,556.92
4. Step 4: Simplify right side
   2,395.80x = 5,147,831.43
5. Step 5: Solve for x
   x = 5,147,831.43/2,395.80
6. Step 6: Final answer
   x = 2,148.69