Finding the Fourth Proportional to 2,577.80, 3,557.22 and 1,529.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,577.80 : 3,557.22 = 1,529.96 : x
2. Step 2: Convert to fraction form
   2,577.80/3,557.22 = 1,529.96/x
3. Step 3: Cross multiply
   2,577.80x = 3,557.22 × 1,529.96
4. Step 4: Simplify right side
   2,577.80x = 5,442,404.31
5. Step 5: Solve for x
   x = 5,442,404.31/2,577.80
6. Step 6: Final answer
   x = 2,111.26