Finding the Fourth Proportional to 1,443.76, 2,165.98 and 469.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.76 : 2,165.98 = 469.86 : x
2. Step 2: Convert to fraction form
   1,443.76/2,165.98 = 469.86/x
3. Step 3: Cross multiply
   1,443.76x = 2,165.98 × 469.86
4. Step 4: Simplify right side
   1,443.76x = 1,017,716.49
5. Step 5: Solve for x
   x = 1,017,716.49/1,443.76
6. Step 6: Final answer
   x = 704.91