Finding the Fourth Proportional to 1,417.41, 2,126.22 and 443.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,417.41 : 2,126.22 = 443.50 : x
2. Step 2: Convert to fraction form
   1,417.41/2,126.22 = 443.50/x
3. Step 3: Cross multiply
   1,417.41x = 2,126.22 × 443.50
4. Step 4: Simplify right side
   1,417.41x = 942,978.57
5. Step 5: Solve for x
   x = 942,978.57/1,417.41
6. Step 6: Final answer
   x = 665.28