Finding the Fourth Proportional to 2,789.74, 3,843.69 and 1,856.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,789.74 : 3,843.69 = 1,856.62 : x
2. Step 2: Convert to fraction form
   2,789.74/3,843.69 = 1,856.62/x
3. Step 3: Cross multiply
   2,789.74x = 3,843.69 × 1,856.62
4. Step 4: Simplify right side
   2,789.74x = 7,136,271.73
5. Step 5: Solve for x
   x = 7,136,271.73/2,789.74
6. Step 6: Final answer
   x = 2,558.04