Finding the Fourth Proportional to 1,818.18, 2,724.48 and 843.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,818.18 : 2,724.48 = 843.15 : x
2. Step 2: Convert to fraction form
   1,818.18/2,724.48 = 843.15/x
3. Step 3: Cross multiply
   1,818.18x = 2,724.48 × 843.15
4. Step 4: Simplify right side
   1,818.18x = 2,297,145.31
5. Step 5: Solve for x
   x = 2,297,145.31/1,818.18
6. Step 6: Final answer
   x = 1,263.43