Finding the Fourth Proportional to 1,978.18, 2,968.19 and 882.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.18 : 2,968.19 = 882.43 : x
2. Step 2: Convert to fraction form
   1,978.18/2,968.19 = 882.43/x
3. Step 3: Cross multiply
   1,978.18x = 2,968.19 × 882.43
4. Step 4: Simplify right side
   1,978.18x = 2,619,200.65
5. Step 5: Solve for x
   x = 2,619,200.65/1,978.18
6. Step 6: Final answer
   x = 1,324.05