Finding the Fourth Proportional to 1,404.03, 2,106.47 and 479.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.03 : 2,106.47 = 479.59 : x
2. Step 2: Convert to fraction form
   1,404.03/2,106.47 = 479.59/x
3. Step 3: Cross multiply
   1,404.03x = 2,106.47 × 479.59
4. Step 4: Simplify right side
   1,404.03x = 1,010,237.88
5. Step 5: Solve for x
   x = 1,010,237.88/1,404.03
6. Step 6: Final answer
   x = 719.53