Finding the Fourth Proportional to 3,674.59, 5,072.38 and 2,556.17

Step by Step Solution

1. Step 1: Write the proportion equation
   3,674.59 : 5,072.38 = 2,556.17 : x
2. Step 2: Convert to fraction form
   3,674.59/5,072.38 = 2,556.17/x
3. Step 3: Cross multiply
   3,674.59x = 5,072.38 × 2,556.17
4. Step 4: Simplify right side
   3,674.59x = 12,965,865.58
5. Step 5: Solve for x
   x = 12,965,865.58/3,674.59
6. Step 6: Final answer
   x = 3,528.53