Finding the Fourth Proportional to 1,978.08, 2,969.04 and 1,968.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.08 : 2,969.04 = 1,968.96 : x
2. Step 2: Convert to fraction form
   1,978.08/2,969.04 = 1,968.96/x
3. Step 3: Cross multiply
   1,978.08x = 2,969.04 × 1,968.96
4. Step 4: Simplify right side
   1,978.08x = 5,845,921.00
5. Step 5: Solve for x
   x = 5,845,921.00/1,978.08
6. Step 6: Final answer
   x = 2,955.35