Finding the Fourth Proportional to 2,150.46, 3,226.20 and 917.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,150.46 : 3,226.20 = 917.94 : x
2. Step 2: Convert to fraction form
   2,150.46/3,226.20 = 917.94/x
3. Step 3: Cross multiply
   2,150.46x = 3,226.20 × 917.94
4. Step 4: Simplify right side
   2,150.46x = 2,961,458.03
5. Step 5: Solve for x
   x = 2,961,458.03/2,150.46
6. Step 6: Final answer
   x = 1,377.13