Finding the Fourth Proportional to 2,231.38, 3,079.00 and 1,236.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,231.38 : 3,079.00 = 1,236.53 : x
2. Step 2: Convert to fraction form
   2,231.38/3,079.00 = 1,236.53/x
3. Step 3: Cross multiply
   2,231.38x = 3,079.00 × 1,236.53
4. Step 4: Simplify right side
   2,231.38x = 3,807,271.27
5. Step 5: Solve for x
   x = 3,807,271.27/2,231.38
6. Step 6: Final answer
   x = 1,706.24