Finding the Fourth Proportional to 2,762.24, 4,139.52 and 1,395.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,762.24 : 4,139.52 = 1,395.20 : x
2. Step 2: Convert to fraction form
   2,762.24/4,139.52 = 1,395.20/x
3. Step 3: Cross multiply
   2,762.24x = 4,139.52 × 1,395.20
4. Step 4: Simplify right side
   2,762.24x = 5,775,458.30
5. Step 5: Solve for x
   x = 5,775,458.30/2,762.24
6. Step 6: Final answer
   x = 2,090.86