Finding the Fourth Proportional to 2,990.52, 4,485.38 and 882.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,990.52 : 4,485.38 = 882.09 : x
2. Step 2: Convert to fraction form
   2,990.52/4,485.38 = 882.09/x
3. Step 3: Cross multiply
   2,990.52x = 4,485.38 × 882.09
4. Step 4: Simplify right side
   2,990.52x = 3,956,504.43
5. Step 5: Solve for x
   x = 3,956,504.43/2,990.52
6. Step 6: Final answer
   x = 1,323.02