Finding the Fourth Proportional to 3,815.30, 5,714.72 and 2,575.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,815.30 : 5,714.72 = 2,575.89 : x
2. Step 2: Convert to fraction form
   3,815.30/5,714.72 = 2,575.89/x
3. Step 3: Cross multiply
   3,815.30x = 5,714.72 × 2,575.89
4. Step 4: Simplify right side
   3,815.30x = 14,720,477.22
5. Step 5: Solve for x
   x = 14,720,477.22/3,815.30
6. Step 6: Final answer
   x = 3,858.28