Finding the Fourth Proportional to 2,874.34, 4,311.69 and 926.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,874.34 : 4,311.69 = 926.29 : x
2. Step 2: Convert to fraction form
   2,874.34/4,311.69 = 926.29/x
3. Step 3: Cross multiply
   2,874.34x = 4,311.69 × 926.29
4. Step 4: Simplify right side
   2,874.34x = 3,993,875.33
5. Step 5: Solve for x
   x = 3,993,875.33/2,874.34
6. Step 6: Final answer
   x = 1,389.49