Finding the Fourth Proportional to 1,956.81, 2,700.42 and 1,072.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,956.81 : 2,700.42 = 1,072.71 : x
2. Step 2: Convert to fraction form
   1,956.81/2,700.42 = 1,072.71/x
3. Step 3: Cross multiply
   1,956.81x = 2,700.42 × 1,072.71
4. Step 4: Simplify right side
   1,956.81x = 2,896,767.54
5. Step 5: Solve for x
   x = 2,896,767.54/1,956.81
6. Step 6: Final answer
   x = 1,480.35