Finding the Fourth Proportional to 2,084.27, 2,873.30 and 1,287.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,084.27 : 2,873.30 = 1,287.06 : x
2. Step 2: Convert to fraction form
   2,084.27/2,873.30 = 1,287.06/x
3. Step 3: Cross multiply
   2,084.27x = 2,873.30 × 1,287.06
4. Step 4: Simplify right side
   2,084.27x = 3,698,109.50
5. Step 5: Solve for x
   x = 3,698,109.50/2,084.27
6. Step 6: Final answer
   x = 1,774.29