Finding the Fourth Proportional to 3,616.89, 4,991.34 and 2,124.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,616.89 : 4,991.34 = 2,124.82 : x
2. Step 2: Convert to fraction form
   3,616.89/4,991.34 = 2,124.82/x
3. Step 3: Cross multiply
   3,616.89x = 4,991.34 × 2,124.82
4. Step 4: Simplify right side
   3,616.89x = 10,605,699.06
5. Step 5: Solve for x
   x = 10,605,699.06/3,616.89
6. Step 6: Final answer
   x = 2,932.27