Finding the Fourth Proportional to 3,926.17, 5,418.30 and 2,597.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,926.17 : 5,418.30 = 2,597.59 : x
2. Step 2: Convert to fraction form
   3,926.17/5,418.30 = 2,597.59/x
3. Step 3: Cross multiply
   3,926.17x = 5,418.30 × 2,597.59
4. Step 4: Simplify right side
   3,926.17x = 14,074,521.90
5. Step 5: Solve for x
   x = 14,074,521.90/3,926.17
6. Step 6: Final answer
   x = 3,584.80