Finding the Fourth Proportional to 1,337.15, 1,846.12 and 865.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,337.15 : 1,846.12 = 865.28 : x
2. Step 2: Convert to fraction form
   1,337.15/1,846.12 = 865.28/x
3. Step 3: Cross multiply
   1,337.15x = 1,846.12 × 865.28
4. Step 4: Simplify right side
   1,337.15x = 1,597,401.48
5. Step 5: Solve for x
   x = 1,597,401.48/1,337.15
6. Step 6: Final answer
   x = 1,194.64