Finding the Fourth Proportional to 2,577.49, 3,556.72 and 1,515.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,577.49 : 3,556.72 = 1,515.29 : x
2. Step 2: Convert to fraction form
   2,577.49/3,556.72 = 1,515.29/x
3. Step 3: Cross multiply
   2,577.49x = 3,556.72 × 1,515.29
4. Step 4: Simplify right side
   2,577.49x = 5,389,462.25
5. Step 5: Solve for x
   x = 5,389,462.25/2,577.49
6. Step 6: Final answer
   x = 2,090.97