Finding the Fourth Proportional to 1,949.82, 2,921.21 and 1,071.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,949.82 : 2,921.21 = 1,071.37 : x
2. Step 2: Convert to fraction form
   1,949.82/2,921.21 = 1,071.37/x
3. Step 3: Cross multiply
   1,949.82x = 2,921.21 × 1,071.37
4. Step 4: Simplify right side
   1,949.82x = 3,129,696.76
5. Step 5: Solve for x
   x = 3,129,696.76/1,949.82
6. Step 6: Final answer
   x = 1,605.12