Finding the Fourth Proportional to 1,171.94, 1,758.15 and 441.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,171.94 : 1,758.15 = 441.50 : x
2. Step 2: Convert to fraction form
   1,171.94/1,758.15 = 441.50/x
3. Step 3: Cross multiply
   1,171.94x = 1,758.15 × 441.50
4. Step 4: Simplify right side
   1,171.94x = 776,214.43
5. Step 5: Solve for x
   x = 776,214.43/1,171.94
6. Step 6: Final answer
   x = 662.34