Finding the Fourth Proportional to 2,455.74, 3,390.04 and 1,616.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,455.74 : 3,390.04 = 1,616.48 : x
2. Step 2: Convert to fraction form
   2,455.74/3,390.04 = 1,616.48/x
3. Step 3: Cross multiply
   2,455.74x = 3,390.04 × 1,616.48
4. Step 4: Simplify right side
   2,455.74x = 5,479,931.86
5. Step 5: Solve for x
   x = 5,479,931.86/2,455.74
6. Step 6: Final answer
   x = 2,231.48