Finding the Fourth Proportional to 2,318.29, 3,476.89 and 1,086.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,318.29 : 3,476.89 = 1,086.55 : x
2. Step 2: Convert to fraction form
   2,318.29/3,476.89 = 1,086.55/x
3. Step 3: Cross multiply
   2,318.29x = 3,476.89 × 1,086.55
4. Step 4: Simplify right side
   2,318.29x = 3,777,814.83
5. Step 5: Solve for x
   x = 3,777,814.83/2,318.29
6. Step 6: Final answer
   x = 1,629.57