Finding the Fourth Proportional to 2,099.73, 3,147.15 and 1,856.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099.73 : 3,147.15 = 1,856.73 : x
2. Step 2: Convert to fraction form
   2,099.73/3,147.15 = 1,856.73/x
3. Step 3: Cross multiply
   2,099.73x = 3,147.15 × 1,856.73
4. Step 4: Simplify right side
   2,099.73x = 5,843,407.82
5. Step 5: Solve for x
   x = 5,843,407.82/2,099.73
6. Step 6: Final answer
   x = 2,782.93