Finding the Fourth Proportional to 1,363.62, 1,883.33 and 920.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,363.62 : 1,883.33 = 920.75 : x
2. Step 2: Convert to fraction form
   1,363.62/1,883.33 = 920.75/x
3. Step 3: Cross multiply
   1,363.62x = 1,883.33 × 920.75
4. Step 4: Simplify right side
   1,363.62x = 1,734,071.49
5. Step 5: Solve for x
   x = 1,734,071.49/1,363.62
6. Step 6: Final answer
   x = 1,271.67