Finding the Fourth Proportional to 2,616.12, 3,922.97 and 1,520.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,616.12 : 3,922.97 = 1,520.82 : x
2. Step 2: Convert to fraction form
   2,616.12/3,922.97 = 1,520.82/x
3. Step 3: Cross multiply
   2,616.12x = 3,922.97 × 1,520.82
4. Step 4: Simplify right side
   2,616.12x = 5,966,123.63
5. Step 5: Solve for x
   x = 5,966,123.63/2,616.12
6. Step 6: Final answer
   x = 2,280.52