Finding the Fourth Proportional to 3,388.57, 5,073.60 and 2,564.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,388.57 : 5,073.60 = 2,564.34 : x
2. Step 2: Convert to fraction form
   3,388.57/5,073.60 = 2,564.34/x
3. Step 3: Cross multiply
   3,388.57x = 5,073.60 × 2,564.34
4. Step 4: Simplify right side
   3,388.57x = 13,010,454.55
5. Step 5: Solve for x
   x = 13,010,454.55/3,388.57
6. Step 6: Final answer
   x = 3,839.51