Finding the Fourth Proportional to 1,018.05, 1,404.74 and 598.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018.05 : 1,404.74 = 598.32 : x
2. Step 2: Convert to fraction form
   1,018.05/1,404.74 = 598.32/x
3. Step 3: Cross multiply
   1,018.05x = 1,404.74 × 598.32
4. Step 4: Simplify right side
   1,018.05x = 840,481.05
5. Step 5: Solve for x
   x = 840,481.05/1,018.05
6. Step 6: Final answer
   x = 825.58