Finding the Fourth Proportional to 3,615.58, 4,989.54 and 2,123.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,615.58 : 4,989.54 = 2,123.52 : x
2. Step 2: Convert to fraction form
   3,615.58/4,989.54 = 2,123.52/x
3. Step 3: Cross multiply
   3,615.58x = 4,989.54 × 2,123.52
4. Step 4: Simplify right side
   3,615.58x = 10,595,396.34
5. Step 5: Solve for x
   x = 10,595,396.34/3,615.58
6. Step 6: Final answer
   x = 2,930.48