Finding the Fourth Proportional to 1,956.19, 2,699.46 and 1,170.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,956.19 : 2,699.46 = 1,170.09 : x
2. Step 2: Convert to fraction form
   1,956.19/2,699.46 = 1,170.09/x
3. Step 3: Cross multiply
   1,956.19x = 2,699.46 × 1,170.09
4. Step 4: Simplify right side
   1,956.19x = 3,158,611.15
5. Step 5: Solve for x
   x = 3,158,611.15/1,956.19
6. Step 6: Final answer
   x = 1,614.68