Finding the Fourth Proportional to 2,414.16, 3,621.51 and 853.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,414.16 : 3,621.51 = 853.83 : x
2. Step 2: Convert to fraction form
   2,414.16/3,621.51 = 853.83/x
3. Step 3: Cross multiply
   2,414.16x = 3,621.51 × 853.83
4. Step 4: Simplify right side
   2,414.16x = 3,092,153.88
5. Step 5: Solve for x
   x = 3,092,153.88/2,414.16
6. Step 6: Final answer
   x = 1,280.84