Finding the Fourth Proportional to 2,577.72, 3,557.04 and 1,458.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,577.72 : 3,557.04 = 1,458.60 : x
2. Step 2: Convert to fraction form
   2,577.72/3,557.04 = 1,458.60/x
3. Step 3: Cross multiply
   2,577.72x = 3,557.04 × 1,458.60
4. Step 4: Simplify right side
   2,577.72x = 5,188,298.54
5. Step 5: Solve for x
   x = 5,188,298.54/2,577.72
6. Step 6: Final answer
   x = 2,012.75