Finding the Fourth Proportional to 2,723.31, 4,081.19 and 1,422.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,723.31 : 4,081.19 = 1,422.18 : x
2. Step 2: Convert to fraction form
   2,723.31/4,081.19 = 1,422.18/x
3. Step 3: Cross multiply
   2,723.31x = 4,081.19 × 1,422.18
4. Step 4: Simplify right side
   2,723.31x = 5,804,179.68
5. Step 5: Solve for x
   x = 5,804,179.68/2,723.31
6. Step 6: Final answer
   x = 2,131.30