Finding the Fourth Proportional to 3,902.38, 5,385.30 and 2,409.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,902.38 : 5,385.30 = 2,409.96 : x
2. Step 2: Convert to fraction form
   3,902.38/5,385.30 = 2,409.96/x
3. Step 3: Cross multiply
   3,902.38x = 5,385.30 × 2,409.96
4. Step 4: Simplify right side
   3,902.38x = 12,978,357.59
5. Step 5: Solve for x
   x = 12,978,357.59/3,902.38
6. Step 6: Final answer
   x = 3,325.75