Finding the Fourth Proportional to 2,158.03, 3,234.33 and 923.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158.03 : 3,234.33 = 923.98 : x
2. Step 2: Convert to fraction form
   2,158.03/3,234.33 = 923.98/x
3. Step 3: Cross multiply
   2,158.03x = 3,234.33 × 923.98
4. Step 4: Simplify right side
   2,158.03x = 2,988,456.23
5. Step 5: Solve for x
   x = 2,988,456.23/2,158.03
6. Step 6: Final answer
   x = 1,384.81