Finding the Fourth Proportional to 1,404.76, 2,107.48 and 480.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.76 : 2,107.48 = 480.33 : x
2. Step 2: Convert to fraction form
   1,404.76/2,107.48 = 480.33/x
3. Step 3: Cross multiply
   1,404.76x = 2,107.48 × 480.33
4. Step 4: Simplify right side
   1,404.76x = 1,012,282.15
5. Step 5: Solve for x
   x = 1,012,282.15/1,404.76
6. Step 6: Final answer
   x = 720.61