Finding the Fourth Proportional to 1,978.09, 2,967.48 and 882.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.09 : 2,967.48 = 882.43 : x
2. Step 2: Convert to fraction form
   1,978.09/2,967.48 = 882.43/x
3. Step 3: Cross multiply
   1,978.09x = 2,967.48 × 882.43
4. Step 4: Simplify right side
   1,978.09x = 2,618,593.38
5. Step 5: Solve for x
   x = 2,618,593.38/1,978.09
6. Step 6: Final answer
   x = 1,323.80