Finding the Fourth Proportional to 2,644.55, 3,966.86 and 1,083.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,644.55 : 3,966.86 = 1,083.47 : x
2. Step 2: Convert to fraction form
   2,644.55/3,966.86 = 1,083.47/x
3. Step 3: Cross multiply
   2,644.55x = 3,966.86 × 1,083.47
4. Step 4: Simplify right side
   2,644.55x = 4,297,948.55
5. Step 5: Solve for x
   x = 4,297,948.55/2,644.55
6. Step 6: Final answer
   x = 1,625.21