Finding the Fourth Proportional to 2,577.28, 3,556.72 and 1,458.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,577.28 : 3,556.72 = 1,458.39 : x
2. Step 2: Convert to fraction form
   2,577.28/3,556.72 = 1,458.39/x
3. Step 3: Cross multiply
   2,577.28x = 3,556.72 × 1,458.39
4. Step 4: Simplify right side
   2,577.28x = 5,187,084.88
5. Step 5: Solve for x
   x = 5,187,084.88/2,577.28
6. Step 6: Final answer
   x = 2,012.62