Finding the Fourth Proportional to 2,740.63, 4,111.35 and 1,442.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,740.63 : 4,111.35 = 1,442.20 : x
2. Step 2: Convert to fraction form
   2,740.63/4,111.35 = 1,442.20/x
3. Step 3: Cross multiply
   2,740.63x = 4,111.35 × 1,442.20
4. Step 4: Simplify right side
   2,740.63x = 5,929,388.97
5. Step 5: Solve for x
   x = 5,929,388.97/2,740.63
6. Step 6: Final answer
   x = 2,163.51