Finding the Fourth Proportional to 2,621.27, 3,617.41 and 1,442.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,621.27 : 3,617.41 = 1,442.34 : x
2. Step 2: Convert to fraction form
   2,621.27/3,617.41 = 1,442.34/x
3. Step 3: Cross multiply
   2,621.27x = 3,617.41 × 1,442.34
4. Step 4: Simplify right side
   2,621.27x = 5,217,522.04
5. Step 5: Solve for x
   x = 5,217,522.04/2,621.27
6. Step 6: Final answer
   x = 1,990.46