Finding the Fourth Proportional to 1,059.96, 1,588.59 and 573.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,059.96 : 1,588.59 = 573.42 : x
2. Step 2: Convert to fraction form
   1,059.96/1,588.59 = 573.42/x
3. Step 3: Cross multiply
   1,059.96x = 1,588.59 × 573.42
4. Step 4: Simplify right side
   1,059.96x = 910,929.28
5. Step 5: Solve for x
   x = 910,929.28/1,059.96
6. Step 6: Final answer
   x = 859.40