Finding the Fourth Proportional to 3,389.12, 5,085.42 and 2,567.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,389.12 : 5,085.42 = 2,567.12 : x
2. Step 2: Convert to fraction form
   3,389.12/5,085.42 = 2,567.12/x
3. Step 3: Cross multiply
   3,389.12x = 5,085.42 × 2,567.12
4. Step 4: Simplify right side
   3,389.12x = 13,054,883.39
5. Step 5: Solve for x
   x = 13,054,883.39/3,389.12
6. Step 6: Final answer
   x = 3,852.00