Finding the Fourth Proportional to 2,597.40, 3,874.23 and 2,415.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,597.40 : 3,874.23 = 2,415.96 : x
2. Step 2: Convert to fraction form
   2,597.40/3,874.23 = 2,415.96/x
3. Step 3: Cross multiply
   2,597.40x = 3,874.23 × 2,415.96
4. Step 4: Simplify right side
   2,597.40x = 9,359,984.71
5. Step 5: Solve for x
   x = 9,359,984.71/2,597.40
6. Step 6: Final answer
   x = 3,603.60