Finding the Fourth Proportional to 2,462.81, 3,693.42 and 818.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,462.81 : 3,693.42 = 818.92 : x
2. Step 2: Convert to fraction form
   2,462.81/3,693.42 = 818.92/x
3. Step 3: Cross multiply
   2,462.81x = 3,693.42 × 818.92
4. Step 4: Simplify right side
   2,462.81x = 3,024,615.51
5. Step 5: Solve for x
   x = 3,024,615.51/2,462.81
6. Step 6: Final answer
   x = 1,228.12