Finding the Fourth Proportional to 1,413.70, 1,951.41 and 917.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,413.70 : 1,951.41 = 917.67 : x
2. Step 2: Convert to fraction form
   1,413.70/1,951.41 = 917.67/x
3. Step 3: Cross multiply
   1,413.70x = 1,951.41 × 917.67
4. Step 4: Simplify right side
   1,413.70x = 1,790,761.17
5. Step 5: Solve for x
   x = 1,790,761.17/1,413.70
6. Step 6: Final answer
   x = 1,266.72