Finding the Fourth Proportional to 1,949.90, 2,688.82 and 1,671.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,949.90 : 2,688.82 = 1,671.05 : x
2. Step 2: Convert to fraction form
   1,949.90/2,688.82 = 1,671.05/x
3. Step 3: Cross multiply
   1,949.90x = 2,688.82 × 1,671.05
4. Step 4: Simplify right side
   1,949.90x = 4,493,155.21
5. Step 5: Solve for x
   x = 4,493,155.21/1,949.90
6. Step 6: Final answer
   x = 2,304.31