Finding the Fourth Proportional to 2,654.72, 3,661.43 and 1,857.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,654.72 : 3,661.43 = 1,857.77 : x
2. Step 2: Convert to fraction form
   2,654.72/3,661.43 = 1,857.77/x
3. Step 3: Cross multiply
   2,654.72x = 3,661.43 × 1,857.77
4. Step 4: Simplify right side
   2,654.72x = 6,802,067.22
5. Step 5: Solve for x
   x = 6,802,067.22/2,654.72
6. Step 6: Final answer
   x = 2,562.26