Finding the Fourth Proportional to 3,953.34, 5,453.33 and 2,556.09

Step by Step Solution

1. Step 1: Write the proportion equation
   3,953.34 : 5,453.33 = 2,556.09 : x
2. Step 2: Convert to fraction form
   3,953.34/5,453.33 = 2,556.09/x
3. Step 3: Cross multiply
   3,953.34x = 5,453.33 × 2,556.09
4. Step 4: Simplify right side
   3,953.34x = 13,939,189.50
5. Step 5: Solve for x
   x = 13,939,189.50/3,953.34
6. Step 6: Final answer
   x = 3,525.93