Finding the Fourth Proportional to 2,055.94, 2,836.69 and 1,172.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,055.94 : 2,836.69 = 1,172.23 : x
2. Step 2: Convert to fraction form
   2,055.94/2,836.69 = 1,172.23/x
3. Step 3: Cross multiply
   2,055.94x = 2,836.69 × 1,172.23
4. Step 4: Simplify right side
   2,055.94x = 3,325,253.12
5. Step 5: Solve for x
   x = 3,325,253.12/2,055.94
6. Step 6: Final answer
   x = 1,617.39