Finding the Fourth Proportional to 2,506.17, 3,456.27 and 1,621.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,506.17 : 3,456.27 = 1,621.05 : x
2. Step 2: Convert to fraction form
   2,506.17/3,456.27 = 1,621.05/x
3. Step 3: Cross multiply
   2,506.17x = 3,456.27 × 1,621.05
4. Step 4: Simplify right side
   2,506.17x = 5,602,786.48
5. Step 5: Solve for x
   x = 5,602,786.48/2,506.17
6. Step 6: Final answer
   x = 2,235.60