Finding the Fourth Proportional to 2,318.54, 3,477.83 and 1,086.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,318.54 : 3,477.83 = 1,086.53 : x
2. Step 2: Convert to fraction form
   2,318.54/3,477.83 = 1,086.53/x
3. Step 3: Cross multiply
   2,318.54x = 3,477.83 × 1,086.53
4. Step 4: Simplify right side
   2,318.54x = 3,778,743.81
5. Step 5: Solve for x
   x = 3,778,743.81/2,318.54
6. Step 6: Final answer
   x = 1,629.80