Finding the Fourth Proportional to 2,577.57, 3,554.70 and 2,180.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,577.57 : 3,554.70 = 2,180.07 : x
2. Step 2: Convert to fraction form
   2,577.57/3,554.70 = 2,180.07/x
3. Step 3: Cross multiply
   2,577.57x = 3,554.70 × 2,180.07
4. Step 4: Simplify right side
   2,577.57x = 7,749,494.83
5. Step 5: Solve for x
   x = 7,749,494.83/2,577.57
6. Step 6: Final answer
   x = 3,006.51