Finding the Fourth Proportional to 2,340.82, 3,230.31 and 1,292.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,340.82 : 3,230.31 = 1,292.89 : x
2. Step 2: Convert to fraction form
   2,340.82/3,230.31 = 1,292.89/x
3. Step 3: Cross multiply
   2,340.82x = 3,230.31 × 1,292.89
4. Step 4: Simplify right side
   2,340.82x = 4,176,435.50
5. Step 5: Solve for x
   x = 4,176,435.50/2,340.82
6. Step 6: Final answer
   x = 1,784.18