Finding the Fourth Proportional to 1,748.68, 2,413.66 and 1,085.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,748.68 : 2,413.66 = 1,085.15 : x
2. Step 2: Convert to fraction form
   1,748.68/2,413.66 = 1,085.15/x
3. Step 3: Cross multiply
   1,748.68x = 2,413.66 × 1,085.15
4. Step 4: Simplify right side
   1,748.68x = 2,619,183.15
5. Step 5: Solve for x
   x = 2,619,183.15/1,748.68
6. Step 6: Final answer
   x = 1,497.81