Finding the Fourth Proportional to 2,101.73, 3,150.16 and 1,858.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,101.73 : 3,150.16 = 1,858.73 : x
2. Step 2: Convert to fraction form
   2,101.73/3,150.16 = 1,858.73/x
3. Step 3: Cross multiply
   2,101.73x = 3,150.16 × 1,858.73
4. Step 4: Simplify right side
   2,101.73x = 5,855,296.90
5. Step 5: Solve for x
   x = 5,855,296.90/2,101.73
6. Step 6: Final answer
   x = 2,785.94