Finding the Fourth Proportional to 2,856.02, 4,290.22 and 2,418.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,856.02 : 4,290.22 = 2,418.17 : x
2. Step 2: Convert to fraction form
   2,856.02/4,290.22 = 2,418.17/x
3. Step 3: Cross multiply
   2,856.02x = 4,290.22 × 2,418.17
4. Step 4: Simplify right side
   2,856.02x = 10,374,447.76
5. Step 5: Solve for x
   x = 10,374,447.76/2,856.02
6. Step 6: Final answer
   x = 3,632.48