Finding the Fourth Proportional to 842.53, 1,162.27 and 543.69

Step by Step Solution

1. Step 1: Write the proportion equation
   842.53 : 1,162.27 = 543.69 : x
2. Step 2: Convert to fraction form
   842.53/1,162.27 = 543.69/x
3. Step 3: Cross multiply
   842.53x = 1,162.27 × 543.69
4. Step 4: Simplify right side
   842.53x = 631,913.52
5. Step 5: Solve for x
   x = 631,913.52/842.53
6. Step 6: Final answer
   x = 750.02