Finding the Fourth Proportional to 2,119.06, 3,176.69 and 1,078.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,119.06 : 3,176.69 = 1,078.48 : x
2. Step 2: Convert to fraction form
   2,119.06/3,176.69 = 1,078.48/x
3. Step 3: Cross multiply
   2,119.06x = 3,176.69 × 1,078.48
4. Step 4: Simplify right side
   2,119.06x = 3,425,996.63
5. Step 5: Solve for x
   x = 3,425,996.63/2,119.06
6. Step 6: Final answer
   x = 1,616.75