Finding the Fourth Proportional to 2,081.52, 2,874.16 and 1,286.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081.52 : 2,874.16 = 1,286.00 : x
2. Step 2: Convert to fraction form
   2,081.52/2,874.16 = 1,286.00/x
3. Step 3: Cross multiply
   2,081.52x = 2,874.16 × 1,286.00
4. Step 4: Simplify right side
   2,081.52x = 3,696,172.24
5. Step 5: Solve for x
   x = 3,696,172.24/2,081.52
6. Step 6: Final answer
   x = 1,775.71