Finding the Fourth Proportional to 1,059.84, 1,588.59 and 443.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,059.84 : 1,588.59 = 443.34 : x
2. Step 2: Convert to fraction form
   1,059.84/1,588.59 = 443.34/x
3. Step 3: Cross multiply
   1,059.84x = 1,588.59 × 443.34
4. Step 4: Simplify right side
   1,059.84x = 704,285.49
5. Step 5: Solve for x
   x = 704,285.49/1,059.84
6. Step 6: Final answer
   x = 664.52