Finding the Fourth Proportional to 3,616.02, 4,988.45 and 2,123.91

Step by Step Solution

1. Step 1: Write the proportion equation
   3,616.02 : 4,988.45 = 2,123.91 : x
2. Step 2: Convert to fraction form
   3,616.02/4,988.45 = 2,123.91/x
3. Step 3: Cross multiply
   3,616.02x = 4,988.45 × 2,123.91
4. Step 4: Simplify right side
   3,616.02x = 10,595,024.15
5. Step 5: Solve for x
   x = 10,595,024.15/3,616.02
6. Step 6: Final answer
   x = 2,930.02