Finding the Fourth Proportional to 3,616.03, 4,989.56 and 2,123.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,616.03 : 4,989.56 = 2,123.81 : x
2. Step 2: Convert to fraction form
   3,616.03/4,989.56 = 2,123.81/x
3. Step 3: Cross multiply
   3,616.03x = 4,989.56 × 2,123.81
4. Step 4: Simplify right side
   3,616.03x = 10,596,877.42
5. Step 5: Solve for x
   x = 10,596,877.42/3,616.03
6. Step 6: Final answer
   x = 2,930.53