Finding the Fourth Proportional to 3,426.72, 5,142.54 and 2,563.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,426.72 : 5,142.54 = 2,563.32 : x
2. Step 2: Convert to fraction form
   3,426.72/5,142.54 = 2,563.32/x
3. Step 3: Cross multiply
   3,426.72x = 5,142.54 × 2,563.32
4. Step 4: Simplify right side
   3,426.72x = 13,181,975.63
5. Step 5: Solve for x
   x = 13,181,975.63/3,426.72
6. Step 6: Final answer
   x = 3,846.82