Finding the Fourth Proportional to 2,489.41, 3,734.72 and 929.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,489.41 : 3,734.72 = 929.49 : x
2. Step 2: Convert to fraction form
   2,489.41/3,734.72 = 929.49/x
3. Step 3: Cross multiply
   2,489.41x = 3,734.72 × 929.49
4. Step 4: Simplify right side
   2,489.41x = 3,471,384.89
5. Step 5: Solve for x
   x = 3,471,384.89/2,489.41
6. Step 6: Final answer
   x = 1,394.46