Finding the Fourth Proportional to 1,956.98, 2,700.62 and 1,171.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,956.98 : 2,700.62 = 1,171.21 : x
2. Step 2: Convert to fraction form
   1,956.98/2,700.62 = 1,171.21/x
3. Step 3: Cross multiply
   1,956.98x = 2,700.62 × 1,171.21
4. Step 4: Simplify right side
   1,956.98x = 3,162,973.79
5. Step 5: Solve for x
   x = 3,162,973.79/1,956.98
6. Step 6: Final answer
   x = 1,616.26