Finding the Fourth Proportional to 2,379.10, 3,564.72 and 818.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,379.10 : 3,564.72 = 818.27 : x
2. Step 2: Convert to fraction form
   2,379.10/3,564.72 = 818.27/x
3. Step 3: Cross multiply
   2,379.10x = 3,564.72 × 818.27
4. Step 4: Simplify right side
   2,379.10x = 2,916,881.52
5. Step 5: Solve for x
   x = 2,916,881.52/2,379.10
6. Step 6: Final answer
   x = 1,226.04