Finding the Fourth Proportional to 2,286.30, 3,155.67 and 1,292.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,286.30 : 3,155.67 = 1,292.18 : x
2. Step 2: Convert to fraction form
   2,286.30/3,155.67 = 1,292.18/x
3. Step 3: Cross multiply
   2,286.30x = 3,155.67 × 1,292.18
4. Step 4: Simplify right side
   2,286.30x = 4,077,677.88
5. Step 5: Solve for x
   x = 4,077,677.88/2,286.30
6. Step 6: Final answer
   x = 1,783.53