Finding the Fourth Proportional to 1,084.86, 1,618.75 and 1,018.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,084.86 : 1,618.75 = 1,018.73 : x
2. Step 2: Convert to fraction form
   1,084.86/1,618.75 = 1,018.73/x
3. Step 3: Cross multiply
   1,084.86x = 1,618.75 × 1,018.73
4. Step 4: Simplify right side
   1,084.86x = 1,649,065.40
5. Step 5: Solve for x
   x = 1,649,065.40/1,084.86
6. Step 6: Final answer
   x = 1,520.07