Finding the Fourth Proportional to 1,978.42, 2,968.32 and 882.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.42 : 2,968.32 = 882.68 : x
2. Step 2: Convert to fraction form
   1,978.42/2,968.32 = 882.68/x
3. Step 3: Cross multiply
   1,978.42x = 2,968.32 × 882.68
4. Step 4: Simplify right side
   1,978.42x = 2,620,076.70
5. Step 5: Solve for x
   x = 2,620,076.70/1,978.42
6. Step 6: Final answer
   x = 1,324.33