Finding the Fourth Proportional to 2,060.40, 3,086.55 and 1,236.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,060.40 : 3,086.55 = 1,236.23 : x
2. Step 2: Convert to fraction form
   2,060.40/3,086.55 = 1,236.23/x
3. Step 3: Cross multiply
   2,060.40x = 3,086.55 × 1,236.23
4. Step 4: Simplify right side
   2,060.40x = 3,815,670.27
5. Step 5: Solve for x
   x = 3,815,670.27/2,060.40
6. Step 6: Final answer
   x = 1,851.91