Finding the Fourth Proportional to 1,949.40, 2,920.86 and 1,371.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,949.40 : 2,920.86 = 1,371.06 : x
2. Step 2: Convert to fraction form
   1,949.40/2,920.86 = 1,371.06/x
3. Step 3: Cross multiply
   1,949.40x = 2,920.86 × 1,371.06
4. Step 4: Simplify right side
   1,949.40x = 4,004,674.31
5. Step 5: Solve for x
   x = 4,004,674.31/1,949.40
6. Step 6: Final answer
   x = 2,054.31