Finding the Fourth Proportional to 536.83, 740.59 and 315.69

Step by Step Solution

1. Step 1: Write the proportion equation
   536.83 : 740.59 = 315.69 : x
2. Step 2: Convert to fraction form
   536.83/740.59 = 315.69/x
3. Step 3: Cross multiply
   536.83x = 740.59 × 315.69
4. Step 4: Simplify right side
   536.83x = 233,793.15
5. Step 5: Solve for x
   x = 233,793.15/536.83
6. Step 6: Final answer
   x = 435.51