Finding the Fourth Proportional to 2,549.52, 3,519.42 and 1,555.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,549.52 : 3,519.42 = 1,555.17 : x
2. Step 2: Convert to fraction form
   2,549.52/3,519.42 = 1,555.17/x
3. Step 3: Cross multiply
   2,549.52x = 3,519.42 × 1,555.17
4. Step 4: Simplify right side
   2,549.52x = 5,473,296.40
5. Step 5: Solve for x
   x = 5,473,296.40/2,549.52
6. Step 6: Final answer
   x = 2,146.79