Finding the Fourth Proportional to 2,055.48, 2,836.58 and 1,171.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,055.48 : 2,836.58 = 1,171.31 : x
2. Step 2: Convert to fraction form
   2,055.48/2,836.58 = 1,171.31/x
3. Step 3: Cross multiply
   2,055.48x = 2,836.58 × 1,171.31
4. Step 4: Simplify right side
   2,055.48x = 3,322,494.48
5. Step 5: Solve for x
   x = 3,322,494.48/2,055.48
6. Step 6: Final answer
   x = 1,616.41