Finding the Fourth Proportional to 2,561.49, 3,820.37 and 2,174.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,561.49 : 3,820.37 = 2,174.04 : x
2. Step 2: Convert to fraction form
   2,561.49/3,820.37 = 2,174.04/x
3. Step 3: Cross multiply
   2,561.49x = 3,820.37 × 2,174.04
4. Step 4: Simplify right side
   2,561.49x = 8,305,626.32
5. Step 5: Solve for x
   x = 8,305,626.32/2,561.49
6. Step 6: Final answer
   x = 3,242.50