Finding the Fourth Proportional to 1,972.80, 2,956.38 and 1,448.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,972.80 : 2,956.38 = 1,448.69 : x
2. Step 2: Convert to fraction form
   1,972.80/2,956.38 = 1,448.69/x
3. Step 3: Cross multiply
   1,972.80x = 2,956.38 × 1,448.69
4. Step 4: Simplify right side
   1,972.80x = 4,282,859.81
5. Step 5: Solve for x
   x = 4,282,859.81/1,972.80
6. Step 6: Final answer
   x = 2,170.96