Finding the Fourth Proportional to 2,076.89, 3,115.34 and 616.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.89 : 3,115.34 = 616.05 : x
2. Step 2: Convert to fraction form
   2,076.89/3,115.34 = 616.05/x
3. Step 3: Cross multiply
   2,076.89x = 3,115.34 × 616.05
4. Step 4: Simplify right side
   2,076.89x = 1,919,204.44
5. Step 5: Solve for x
   x = 1,919,204.44/2,076.89
6. Step 6: Final answer
   x = 924.08