Finding the Fourth Proportional to 2,223.89, 3,336.65 and 926.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,223.89 : 3,336.65 = 926.27 : x
2. Step 2: Convert to fraction form
   2,223.89/3,336.65 = 926.27/x
3. Step 3: Cross multiply
   2,223.89x = 3,336.65 × 926.27
4. Step 4: Simplify right side
   2,223.89x = 3,090,634.16
5. Step 5: Solve for x
   x = 3,090,634.16/2,223.89
6. Step 6: Final answer
   x = 1,389.74