Finding the Fourth Proportional to 1,089.45, 1,632.42 and 533.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,089.45 : 1,632.42 = 533.52 : x
2. Step 2: Convert to fraction form
   1,089.45/1,632.42 = 533.52/x
3. Step 3: Cross multiply
   1,089.45x = 1,632.42 × 533.52
4. Step 4: Simplify right side
   1,089.45x = 870,928.72
5. Step 5: Solve for x
   x = 870,928.72/1,089.45
6. Step 6: Final answer
   x = 799.42