Finding the Fourth Proportional to 1,978.68, 2,968.04 and 883.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.68 : 2,968.04 = 883.10 : x
2. Step 2: Convert to fraction form
   1,978.68/2,968.04 = 883.10/x
3. Step 3: Cross multiply
   1,978.68x = 2,968.04 × 883.10
4. Step 4: Simplify right side
   1,978.68x = 2,621,085.75
5. Step 5: Solve for x
   x = 2,621,085.75/1,978.68
6. Step 6: Final answer
   x = 1,324.67