Finding the Fourth Proportional to 1,969.05, 2,951.37 and 798.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,969.05 : 2,951.37 = 798.78 : x
2. Step 2: Convert to fraction form
   1,969.05/2,951.37 = 798.78/x
3. Step 3: Cross multiply
   1,969.05x = 2,951.37 × 798.78
4. Step 4: Simplify right side
   1,969.05x = 2,357,495.33
5. Step 5: Solve for x
   x = 2,357,495.33/1,969.05
6. Step 6: Final answer
   x = 1,197.28