Finding the Fourth Proportional to 2,318.78, 3,199.98 and 1,324.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,318.78 : 3,199.98 = 1,324.22 : x
2. Step 2: Convert to fraction form
   2,318.78/3,199.98 = 1,324.22/x
3. Step 3: Cross multiply
   2,318.78x = 3,199.98 × 1,324.22
4. Step 4: Simplify right side
   2,318.78x = 4,237,477.52
5. Step 5: Solve for x
   x = 4,237,477.52/2,318.78
6. Step 6: Final answer
   x = 1,827.46