Finding the Fourth Proportional to 1,956.62, 2,700.21 and 1,072.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,956.62 : 2,700.21 = 1,072.43 : x
2. Step 2: Convert to fraction form
   1,956.62/2,700.21 = 1,072.43/x
3. Step 3: Cross multiply
   1,956.62x = 2,700.21 × 1,072.43
4. Step 4: Simplify right side
   1,956.62x = 2,895,791.43
5. Step 5: Solve for x
   x = 2,895,791.43/1,956.62
6. Step 6: Final answer
   x = 1,479.99