Finding the Fourth Proportional to 2,577.76, 3,557.30 and 1,458.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,577.76 : 3,557.30 = 1,458.70 : x
2. Step 2: Convert to fraction form
   2,577.76/3,557.30 = 1,458.70/x
3. Step 3: Cross multiply
   2,577.76x = 3,557.30 × 1,458.70
4. Step 4: Simplify right side
   2,577.76x = 5,189,017.32
5. Step 5: Solve for x
   x = 5,189,017.32/2,577.76
6. Step 6: Final answer
   x = 2,013.00