Finding the Fourth Proportional to 3,388.34, 5,082.42 and 923.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,388.34 : 5,082.42 = 923.30 : x
2. Step 2: Convert to fraction form
   3,388.34/5,082.42 = 923.30/x
3. Step 3: Cross multiply
   3,388.34x = 5,082.42 × 923.30
4. Step 4: Simplify right side
   3,388.34x = 4,692,598.39
5. Step 5: Solve for x
   x = 4,692,598.39/3,388.34
6. Step 6: Final answer
   x = 1,384.93