Finding the Fourth Proportional to 1,404.64, 2,106.83 and 480.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.64 : 2,106.83 = 480.22 : x
2. Step 2: Convert to fraction form
   1,404.64/2,106.83 = 480.22/x
3. Step 3: Cross multiply
   1,404.64x = 2,106.83 × 480.22
4. Step 4: Simplify right side
   1,404.64x = 1,011,741.90
5. Step 5: Solve for x
   x = 1,011,741.90/1,404.64
6. Step 6: Final answer
   x = 720.29