Finding the Fourth Proportional to 2,561.18, 3,534.89 and 1,617.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,561.18 : 3,534.89 = 1,617.44 : x
2. Step 2: Convert to fraction form
   2,561.18/3,534.89 = 1,617.44/x
3. Step 3: Cross multiply
   2,561.18x = 3,534.89 × 1,617.44
4. Step 4: Simplify right side
   2,561.18x = 5,717,446.72
5. Step 5: Solve for x
   x = 5,717,446.72/2,561.18
6. Step 6: Final answer
   x = 2,232.35