Finding the Fourth Proportional to 2,549.82, 3,519.42 and 1,555.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,549.82 : 3,519.42 = 1,555.68 : x
2. Step 2: Convert to fraction form
   2,549.82/3,519.42 = 1,555.68/x
3. Step 3: Cross multiply
   2,549.82x = 3,519.42 × 1,555.68
4. Step 4: Simplify right side
   2,549.82x = 5,475,091.31
5. Step 5: Solve for x
   x = 5,475,091.31/2,549.82
6. Step 6: Final answer
   x = 2,147.25