Finding the Fourth Proportional to 2,641.92, 3,961.50 and 910.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,641.92 : 3,961.50 = 910.14 : x
2. Step 2: Convert to fraction form
   2,641.92/3,961.50 = 910.14/x
3. Step 3: Cross multiply
   2,641.92x = 3,961.50 × 910.14
4. Step 4: Simplify right side
   2,641.92x = 3,605,519.61
5. Step 5: Solve for x
   x = 3,605,519.61/2,641.92
6. Step 6: Final answer
   x = 1,364.73