Finding the Fourth Proportional to 3,386.36, 5,078.27 and 1,164.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,386.36 : 5,078.27 = 1,164.56 : x
2. Step 2: Convert to fraction form
   3,386.36/5,078.27 = 1,164.56/x
3. Step 3: Cross multiply
   3,386.36x = 5,078.27 × 1,164.56
4. Step 4: Simplify right side
   3,386.36x = 5,913,937.42
5. Step 5: Solve for x
   x = 5,913,937.42/3,386.36
6. Step 6: Final answer
   x = 1,746.40