Finding the Fourth Proportional to 1,059.01, 1,588.59 and 328.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,059.01 : 1,588.59 = 328.59 : x
2. Step 2: Convert to fraction form
   1,059.01/1,588.59 = 328.59/x
3. Step 3: Cross multiply
   1,059.01x = 1,588.59 × 328.59
4. Step 4: Simplify right side
   1,059.01x = 521,994.79
5. Step 5: Solve for x
   x = 521,994.79/1,059.01
6. Step 6: Final answer
   x = 492.91