Finding the Fourth Proportional to 1,173.02, 1,758.86 and 479.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,173.02 : 1,758.86 = 479.50 : x
2. Step 2: Convert to fraction form
   1,173.02/1,758.86 = 479.50/x
3. Step 3: Cross multiply
   1,173.02x = 1,758.86 × 479.50
4. Step 4: Simplify right side
   1,173.02x = 843,373.37
5. Step 5: Solve for x
   x = 843,373.37/1,173.02
6. Step 6: Final answer
   x = 718.98