Finding the Fourth Proportional to 2,786.16, 4,176.32 and 1,323.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,786.16 : 4,176.32 = 1,323.56 : x
2. Step 2: Convert to fraction form
   2,786.16/4,176.32 = 1,323.56/x
3. Step 3: Cross multiply
   2,786.16x = 4,176.32 × 1,323.56
4. Step 4: Simplify right side
   2,786.16x = 5,527,610.10
5. Step 5: Solve for x
   x = 5,527,610.10/2,786.16
6. Step 6: Final answer
   x = 1,983.95