Finding the Fourth Proportional to 3,895.80, 5,370.61 and 2,402.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,895.80 : 5,370.61 = 2,402.71 : x
2. Step 2: Convert to fraction form
   3,895.80/5,370.61 = 2,402.71/x
3. Step 3: Cross multiply
   3,895.80x = 5,370.61 × 2,402.71
4. Step 4: Simplify right side
   3,895.80x = 12,904,018.35
5. Step 5: Solve for x
   x = 12,904,018.35/3,895.80
6. Step 6: Final answer
   x = 3,312.29