Finding the Fourth Proportional to 2,003.48, 3,005.56 and 616.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.48 : 3,005.56 = 616.79 : x
2. Step 2: Convert to fraction form
   2,003.48/3,005.56 = 616.79/x
3. Step 3: Cross multiply
   2,003.48x = 3,005.56 × 616.79
4. Step 4: Simplify right side
   2,003.48x = 1,853,784.32
5. Step 5: Solve for x
   x = 1,853,784.32/2,003.48
6. Step 6: Final answer
   x = 925.28