Finding the Fourth Proportional to 1,967.70, 2,715.33 and 1,258.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,967.70 : 2,715.33 = 1,258.56 : x
2. Step 2: Convert to fraction form
   1,967.70/2,715.33 = 1,258.56/x
3. Step 3: Cross multiply
   1,967.70x = 2,715.33 × 1,258.56
4. Step 4: Simplify right side
   1,967.70x = 3,417,405.72
5. Step 5: Solve for x
   x = 3,417,405.72/1,967.70
6. Step 6: Final answer
   x = 1,736.75