Finding the Fourth Proportional to 1,114.80, 1,667.34 and 910.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,114.80 : 1,667.34 = 910.68 : x
2. Step 2: Convert to fraction form
   1,114.80/1,667.34 = 910.68/x
3. Step 3: Cross multiply
   1,114.80x = 1,667.34 × 910.68
4. Step 4: Simplify right side
   1,114.80x = 1,518,413.19
5. Step 5: Solve for x
   x = 1,518,413.19/1,114.80
6. Step 6: Final answer
   x = 1,362.05