Finding the Fourth Proportional to 1,978.16, 2,967.47 and 882.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.16 : 2,967.47 = 882.39 : x
2. Step 2: Convert to fraction form
   1,978.16/2,967.47 = 882.39/x
3. Step 3: Cross multiply
   1,978.16x = 2,967.47 × 882.39
4. Step 4: Simplify right side
   1,978.16x = 2,618,446.60
5. Step 5: Solve for x
   x = 2,618,446.60/1,978.16
6. Step 6: Final answer
   x = 1,323.68