Finding the Fourth Proportional to 2,002.78, 3,004.17 and 616.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,002.78 : 3,004.17 = 616.09 : x
2. Step 2: Convert to fraction form
   2,002.78/3,004.17 = 616.09/x
3. Step 3: Cross multiply
   2,002.78x = 3,004.17 × 616.09
4. Step 4: Simplify right side
   2,002.78x = 1,850,824.07
5. Step 5: Solve for x
   x = 1,850,824.07/2,002.78
6. Step 6: Final answer
   x = 924.13