Finding the Fourth Proportional to 2,644.29, 3,644.91 and 2,083.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,644.29 : 3,644.91 = 2,083.86 : x
2. Step 2: Convert to fraction form
   2,644.29/3,644.91 = 2,083.86/x
3. Step 3: Cross multiply
   2,644.29x = 3,644.91 × 2,083.86
4. Step 4: Simplify right side
   2,644.29x = 7,595,482.15
5. Step 5: Solve for x
   x = 7,595,482.15/2,644.29
6. Step 6: Final answer
   x = 2,872.41