Finding the Fourth Proportional to 1,022.43, 1,533.32 and 437.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,022.43 : 1,533.32 = 437.42 : x
2. Step 2: Convert to fraction form
   1,022.43/1,533.32 = 437.42/x
3. Step 3: Cross multiply
   1,022.43x = 1,533.32 × 437.42
4. Step 4: Simplify right side
   1,022.43x = 670,704.83
5. Step 5: Solve for x
   x = 670,704.83/1,022.43
6. Step 6: Final answer
   x = 655.99