Finding the Fourth Proportional to 2,614.89, 3,923.01 and 971.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,614.89 : 3,923.01 = 971.49 : x
2. Step 2: Convert to fraction form
   2,614.89/3,923.01 = 971.49/x
3. Step 3: Cross multiply
   2,614.89x = 3,923.01 × 971.49
4. Step 4: Simplify right side
   2,614.89x = 3,811,164.98
5. Step 5: Solve for x
   x = 3,811,164.98/2,614.89
6. Step 6: Final answer
   x = 1,457.49