Finding the Fourth Proportional to 1,956.69, 2,699.46 and 1,258.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,956.69 : 2,699.46 = 1,258.47 : x
2. Step 2: Convert to fraction form
   1,956.69/2,699.46 = 1,258.47/x
3. Step 3: Cross multiply
   1,956.69x = 2,699.46 × 1,258.47
4. Step 4: Simplify right side
   1,956.69x = 3,397,189.43
5. Step 5: Solve for x
   x = 3,397,189.43/1,956.69
6. Step 6: Final answer
   x = 1,736.19