Finding the Fourth Proportional to 2,095.52, 3,142.40 and 1,055.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,095.52 : 3,142.40 = 1,055.12 : x
2. Step 2: Convert to fraction form
   2,095.52/3,142.40 = 1,055.12/x
3. Step 3: Cross multiply
   2,095.52x = 3,142.40 × 1,055.12
4. Step 4: Simplify right side
   2,095.52x = 3,315,609.09
5. Step 5: Solve for x
   x = 3,315,609.09/2,095.52
6. Step 6: Final answer
   x = 1,582.24