Finding the Fourth Proportional to 514.72, 709.59 and 435.72

Step by Step Solution

1. Step 1: Write the proportion equation
   514.72 : 709.59 = 435.72 : x
2. Step 2: Convert to fraction form
   514.72/709.59 = 435.72/x
3. Step 3: Cross multiply
   514.72x = 709.59 × 435.72
4. Step 4: Simplify right side
   514.72x = 309,182.55
5. Step 5: Solve for x
   x = 309,182.55/514.72
6. Step 6: Final answer
   x = 600.68