Finding the Fourth Proportional to 2,894.42, 4,341.71 and 920.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,894.42 : 4,341.71 = 920.05 : x
2. Step 2: Convert to fraction form
   2,894.42/4,341.71 = 920.05/x
3. Step 3: Cross multiply
   2,894.42x = 4,341.71 × 920.05
4. Step 4: Simplify right side
   2,894.42x = 3,994,581.73
5. Step 5: Solve for x
   x = 3,994,581.73/2,894.42
6. Step 6: Final answer
   x = 1,380.10