Finding the Fourth Proportional to 2,970.38, 4,456.56 and 996.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,970.38 : 4,456.56 = 996.20 : x
2. Step 2: Convert to fraction form
   2,970.38/4,456.56 = 996.20/x
3. Step 3: Cross multiply
   2,970.38x = 4,456.56 × 996.20
4. Step 4: Simplify right side
   2,970.38x = 4,439,645.50
5. Step 5: Solve for x
   x = 4,439,645.50/2,970.38
6. Step 6: Final answer
   x = 1,494.64