Finding the Fourth Proportional to 2,218.34, 3,321.72 and 1,294.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,218.34 : 3,321.72 = 1,294.34 : x
2. Step 2: Convert to fraction form
   2,218.34/3,321.72 = 1,294.34/x
3. Step 3: Cross multiply
   2,218.34x = 3,321.72 × 1,294.34
4. Step 4: Simplify right side
   2,218.34x = 4,299,435.06
5. Step 5: Solve for x
   x = 4,299,435.06/2,218.34
6. Step 6: Final answer
   x = 1,938.13