Finding the Fourth Proportional to 2,055.29, 3,078.03 and 1,186.97

Step by Step Solution

1. Step 1: Write the proportion equation
   2,055.29 : 3,078.03 = 1,186.97 : x
2. Step 2: Convert to fraction form
   2,055.29/3,078.03 = 1,186.97/x
3. Step 3: Cross multiply
   2,055.29x = 3,078.03 × 1,186.97
4. Step 4: Simplify right side
   2,055.29x = 3,653,529.27
5. Step 5: Solve for x
   x = 3,653,529.27/2,055.29
6. Step 6: Final answer
   x = 1,777.62