Finding the Fourth Proportional to 2,442.12, 3,662.04 and 1,055.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,442.12 : 3,662.04 = 1,055.40 : x
2. Step 2: Convert to fraction form
   2,442.12/3,662.04 = 1,055.40/x
3. Step 3: Cross multiply
   2,442.12x = 3,662.04 × 1,055.40
4. Step 4: Simplify right side
   2,442.12x = 3,864,917.02
5. Step 5: Solve for x
   x = 3,864,917.02/2,442.12
6. Step 6: Final answer
   x = 1,582.61