Finding the Fourth Proportional to 2,055.32, 2,836.53 and 1,171.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,055.32 : 2,836.53 = 1,171.20 : x
2. Step 2: Convert to fraction form
   2,055.32/2,836.53 = 1,171.20/x
3. Step 3: Cross multiply
   2,055.32x = 2,836.53 × 1,171.20
4. Step 4: Simplify right side
   2,055.32x = 3,322,143.94
5. Step 5: Solve for x
   x = 3,322,143.94/2,055.32
6. Step 6: Final answer
   x = 1,616.37