Finding the Fourth Proportional to 2,443.68, 3,662 and 1,211.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.68 : 3,662 = 1,211.94 : x
2. Step 2: Convert to fraction form
   2,443.68/3,662 = 1,211.94/x
3. Step 3: Cross multiply
   2,443.68x = 3,662 × 1,211.94
4. Step 4: Simplify right side
   2,443.68x = 4,438,124.28
5. Step 5: Solve for x
   x = 4,438,124.28/2,443.68
6. Step 6: Final answer
   x = 1,816.16