Finding the Fourth Proportional to 3,396.72, 5,087.88 and 2,565.84

Step by Step Solution

1. Step 1: Write the proportion equation
   3,396.72 : 5,087.88 = 2,565.84 : x
2. Step 2: Convert to fraction form
   3,396.72/5,087.88 = 2,565.84/x
3. Step 3: Cross multiply
   3,396.72x = 5,087.88 × 2,565.84
4. Step 4: Simplify right side
   3,396.72x = 13,054,686.02
5. Step 5: Solve for x
   x = 13,054,686.02/3,396.72
6. Step 6: Final answer
   x = 3,843.32