Finding the Fourth Proportional to 2,655.25, 3,984.02 and 1,422.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,655.25 : 3,984.02 = 1,422.31 : x
2. Step 2: Convert to fraction form
   2,655.25/3,984.02 = 1,422.31/x
3. Step 3: Cross multiply
   2,655.25x = 3,984.02 × 1,422.31
4. Step 4: Simplify right side
   2,655.25x = 5,666,504.37
5. Step 5: Solve for x
   x = 5,666,504.37/2,655.25
6. Step 6: Final answer
   x = 2,134.08