Finding the Fourth Proportional to 2,462.19, 3,691.76 and 818.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,462.19 : 3,691.76 = 818.31 : x
2. Step 2: Convert to fraction form
   2,462.19/3,691.76 = 818.31/x
3. Step 3: Cross multiply
   2,462.19x = 3,691.76 × 818.31
4. Step 4: Simplify right side
   2,462.19x = 3,021,000.03
5. Step 5: Solve for x
   x = 3,021,000.03/2,462.19
6. Step 6: Final answer
   x = 1,226.96