Finding the Fourth Proportional to 1,978.28, 2,968.18 and 882.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.28 : 2,968.18 = 882.76 : x
2. Step 2: Convert to fraction form
   1,978.28/2,968.18 = 882.76/x
3. Step 3: Cross multiply
   1,978.28x = 2,968.18 × 882.76
4. Step 4: Simplify right side
   1,978.28x = 2,620,190.58
5. Step 5: Solve for x
   x = 2,620,190.58/1,978.28
6. Step 6: Final answer
   x = 1,324.48