Finding the Fourth Proportional to 2,051.76, 3,078.41 and 1,077.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,051.76 : 3,078.41 = 1,077.18 : x
2. Step 2: Convert to fraction form
   2,051.76/3,078.41 = 1,077.18/x
3. Step 3: Cross multiply
   2,051.76x = 3,078.41 × 1,077.18
4. Step 4: Simplify right side
   2,051.76x = 3,315,996.30
5. Step 5: Solve for x
   x = 3,315,996.30/2,051.76
6. Step 6: Final answer
   x = 1,616.17