Finding the Fourth Proportional to 3,895.17, 5,373.59 and 2,403.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,895.17 : 5,373.59 = 2,403.15 : x
2. Step 2: Convert to fraction form
   3,895.17/5,373.59 = 2,403.15/x
3. Step 3: Cross multiply
   3,895.17x = 5,373.59 × 2,403.15
4. Step 4: Simplify right side
   3,895.17x = 12,913,530.79
5. Step 5: Solve for x
   x = 12,913,530.79/3,895.17
6. Step 6: Final answer
   x = 3,315.27