Finding the Fourth Proportional to 1,921.31, 2,878.81 and 1,849.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,921.31 : 2,878.81 = 1,849.36 : x
2. Step 2: Convert to fraction form
   1,921.31/2,878.81 = 1,849.36/x
3. Step 3: Cross multiply
   1,921.31x = 2,878.81 × 1,849.36
4. Step 4: Simplify right side
   1,921.31x = 5,323,956.06
5. Step 5: Solve for x
   x = 5,323,956.06/1,921.31
6. Step 6: Final answer
   x = 2,771.00