Finding the Fourth Proportional to 3,675.78, 5,071.59 and 2,555.46

Step by Step Solution

1. Step 1: Write the proportion equation
   3,675.78 : 5,071.59 = 2,555.46 : x
2. Step 2: Convert to fraction form
   3,675.78/5,071.59 = 2,555.46/x
3. Step 3: Cross multiply
   3,675.78x = 5,071.59 × 2,555.46
4. Step 4: Simplify right side
   3,675.78x = 12,960,245.38
5. Step 5: Solve for x
   x = 12,960,245.38/3,675.78
6. Step 6: Final answer
   x = 3,525.85