Finding the Fourth Proportional to 2,462.10, 3,692.79 and 818.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,462.10 : 3,692.79 = 818.61 : x
2. Step 2: Convert to fraction form
   2,462.10/3,692.79 = 818.61/x
3. Step 3: Cross multiply
   2,462.10x = 3,692.79 × 818.61
4. Step 4: Simplify right side
   2,462.10x = 3,022,954.82
5. Step 5: Solve for x
   x = 3,022,954.82/2,462.10
6. Step 6: Final answer
   x = 1,227.80