Finding the Fourth Proportional to 1,018.52, 1,405.42 and 593.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018.52 : 1,405.42 = 593.03 : x
2. Step 2: Convert to fraction form
   1,018.52/1,405.42 = 593.03/x
3. Step 3: Cross multiply
   1,018.52x = 1,405.42 × 593.03
4. Step 4: Simplify right side
   1,018.52x = 833,456.22
5. Step 5: Solve for x
   x = 833,456.22/1,018.52
6. Step 6: Final answer
   x = 818.30