Finding the Fourth Proportional to 1,173.01, 1,758.71 and 479.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,173.01 : 1,758.71 = 479.47 : x
2. Step 2: Convert to fraction form
   1,173.01/1,758.71 = 479.47/x
3. Step 3: Cross multiply
   1,173.01x = 1,758.71 × 479.47
4. Step 4: Simplify right side
   1,173.01x = 843,248.78
5. Step 5: Solve for x
   x = 843,248.78/1,173.01
6. Step 6: Final answer
   x = 718.88