Finding the Fourth Proportional to 2,243.31, 3,364.74 and 926.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,243.31 : 3,364.74 = 926.69 : x
2. Step 2: Convert to fraction form
   2,243.31/3,364.74 = 926.69/x
3. Step 3: Cross multiply
   2,243.31x = 3,364.74 × 926.69
4. Step 4: Simplify right side
   2,243.31x = 3,118,054.09
5. Step 5: Solve for x
   x = 3,118,054.09/2,243.31
6. Step 6: Final answer
   x = 1,389.94