Finding the Fourth Proportional to 2,416.16, 3,621.52 and 1,440.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,416.16 : 3,621.52 = 1,440.22 : x
2. Step 2: Convert to fraction form
   2,416.16/3,621.52 = 1,440.22/x
3. Step 3: Cross multiply
   2,416.16x = 3,621.52 × 1,440.22
4. Step 4: Simplify right side
   2,416.16x = 5,215,785.53
5. Step 5: Solve for x
   x = 5,215,785.53/2,416.16
6. Step 6: Final answer
   x = 2,158.71