Finding the Fourth Proportional to 1,544.05, 2,315.53 and 958.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,544.05 : 2,315.53 = 958.15 : x
2. Step 2: Convert to fraction form
   1,544.05/2,315.53 = 958.15/x
3. Step 3: Cross multiply
   1,544.05x = 2,315.53 × 958.15
4. Step 4: Simplify right side
   1,544.05x = 2,218,608.70
5. Step 5: Solve for x
   x = 2,218,608.70/1,544.05
6. Step 6: Final answer
   x = 1,436.88