Finding the Fourth Proportional to 2,724.34, 4,081.20 and 1,422.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,724.34 : 4,081.20 = 1,422.67 : x
2. Step 2: Convert to fraction form
   2,724.34/4,081.20 = 1,422.67/x
3. Step 3: Cross multiply
   2,724.34x = 4,081.20 × 1,422.67
4. Step 4: Simplify right side
   2,724.34x = 5,806,200.80
5. Step 5: Solve for x
   x = 5,806,200.80/2,724.34
6. Step 6: Final answer
   x = 2,131.23