Finding the Fourth Proportional to 2,577.89, 3,557.55 and 1,529.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,577.89 : 3,557.55 = 1,529.96 : x
2. Step 2: Convert to fraction form
   2,577.89/3,557.55 = 1,529.96/x
3. Step 3: Cross multiply
   2,577.89x = 3,557.55 × 1,529.96
4. Step 4: Simplify right side
   2,577.89x = 5,442,909.20
5. Step 5: Solve for x
   x = 5,442,909.20/2,577.89
6. Step 6: Final answer
   x = 2,111.38