Finding the Fourth Proportional to 1,442.29, 1,990.25 and 882.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,442.29 : 1,990.25 = 882.53 : x
2. Step 2: Convert to fraction form
   1,442.29/1,990.25 = 882.53/x
3. Step 3: Cross multiply
   1,442.29x = 1,990.25 × 882.53
4. Step 4: Simplify right side
   1,442.29x = 1,756,440.97
5. Step 5: Solve for x
   x = 1,756,440.97/1,442.29
6. Step 6: Final answer
   x = 1,217.82