Finding the Fourth Proportional to 3,300.81, 4,951.10 and 992.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,300.81 : 4,951.10 = 992.25 : x
2. Step 2: Convert to fraction form
   3,300.81/4,951.10 = 992.25/x
3. Step 3: Cross multiply
   3,300.81x = 4,951.10 × 992.25
4. Step 4: Simplify right side
   3,300.81x = 4,912,724.01
5. Step 5: Solve for x
   x = 4,912,724.01/3,300.81
6. Step 6: Final answer
   x = 1,488.34