Finding the Fourth Proportional to 2,218.10, 3,323.05 and 1,294.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,218.10 : 3,323.05 = 1,294.10 : x
2. Step 2: Convert to fraction form
   2,218.10/3,323.05 = 1,294.10/x
3. Step 3: Cross multiply
   2,218.10x = 3,323.05 × 1,294.10
4. Step 4: Simplify right side
   2,218.10x = 4,300,359.01
5. Step 5: Solve for x
   x = 4,300,359.01/2,218.10
6. Step 6: Final answer
   x = 1,938.76