Finding the Fourth Proportional to 1,344.86, 1,857.32 and 926.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,344.86 : 1,857.32 = 926.30 : x
2. Step 2: Convert to fraction form
   1,344.86/1,857.32 = 926.30/x
3. Step 3: Cross multiply
   1,344.86x = 1,857.32 × 926.30
4. Step 4: Simplify right side
   1,344.86x = 1,720,435.52
5. Step 5: Solve for x
   x = 1,720,435.52/1,344.86
6. Step 6: Final answer
   x = 1,279.27