Finding the Fourth Proportional to 3,417.56, 5,127.15 and 1,077.68

Step by Step Solution

1. Step 1: Write the proportion equation
   3,417.56 : 5,127.15 = 1,077.68 : x
2. Step 2: Convert to fraction form
   3,417.56/5,127.15 = 1,077.68/x
3. Step 3: Cross multiply
   3,417.56x = 5,127.15 × 1,077.68
4. Step 4: Simplify right side
   3,417.56x = 5,525,401.38
5. Step 5: Solve for x
   x = 5,525,401.38/3,417.56
6. Step 6: Final answer
   x = 1,616.77