Finding the Fourth Proportional to 2,789.43, 4,190.69 and 2,631.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,789.43 : 4,190.69 = 2,631.82 : x
2. Step 2: Convert to fraction form
   2,789.43/4,190.69 = 2,631.82/x
3. Step 3: Cross multiply
   2,789.43x = 4,190.69 × 2,631.82
4. Step 4: Simplify right side
   2,789.43x = 11,029,141.76
5. Step 5: Solve for x
   x = 11,029,141.76/2,789.43
6. Step 6: Final answer
   x = 3,953.91