Finding the Fourth Proportional to 1,404.94, 2,106.89 and 480.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.94 : 2,106.89 = 480.24 : x
2. Step 2: Convert to fraction form
   1,404.94/2,106.89 = 480.24/x
3. Step 3: Cross multiply
   1,404.94x = 2,106.89 × 480.24
4. Step 4: Simplify right side
   1,404.94x = 1,011,810.45
5. Step 5: Solve for x
   x = 1,011,810.45/1,404.94
6. Step 6: Final answer
   x = 720.18