Finding the Fourth Proportional to 1,173.94, 1,761.15 and 443.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,173.94 : 1,761.15 = 443.50 : x
2. Step 2: Convert to fraction form
   1,173.94/1,761.15 = 443.50/x
3. Step 3: Cross multiply
   1,173.94x = 1,761.15 × 443.50
4. Step 4: Simplify right side
   1,173.94x = 781,070.03
5. Step 5: Solve for x
   x = 781,070.03/1,173.94
6. Step 6: Final answer
   x = 665.34