Finding the Fourth Proportional to 2,553.41, 3,517.43 and 2,181.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,553.41 : 3,517.43 = 2,181.62 : x
2. Step 2: Convert to fraction form
   2,553.41/3,517.43 = 2,181.62/x
3. Step 3: Cross multiply
   2,553.41x = 3,517.43 × 2,181.62
4. Step 4: Simplify right side
   2,553.41x = 7,673,693.52
5. Step 5: Solve for x
   x = 7,673,693.52/2,553.41
6. Step 6: Final answer
   x = 3,005.27