Finding the Fourth Proportional to 1,993.24, 2,990.72 and 953.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,993.24 : 2,990.72 = 953.27 : x
2. Step 2: Convert to fraction form
   1,993.24/2,990.72 = 953.27/x
3. Step 3: Cross multiply
   1,993.24x = 2,990.72 × 953.27
4. Step 4: Simplify right side
   1,993.24x = 2,850,962.30
5. Step 5: Solve for x
   x = 2,850,962.30/1,993.24
6. Step 6: Final answer
   x = 1,430.31