Finding the Fourth Proportional to 1,336.27, 2,014.59 and 1,242.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,336.27 : 2,014.59 = 1,242.31 : x
2. Step 2: Convert to fraction form
   1,336.27/2,014.59 = 1,242.31/x
3. Step 3: Cross multiply
   1,336.27x = 2,014.59 × 1,242.31
4. Step 4: Simplify right side
   1,336.27x = 2,502,745.30
5. Step 5: Solve for x
   x = 2,502,745.30/1,336.27
6. Step 6: Final answer
   x = 1,872.93