Finding the Fourth Proportional to 1,436.91, 2,149.98 and 849.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.91 : 2,149.98 = 849.75 : x
2. Step 2: Convert to fraction form
   1,436.91/2,149.98 = 849.75/x
3. Step 3: Cross multiply
   1,436.91x = 2,149.98 × 849.75
4. Step 4: Simplify right side
   1,436.91x = 1,826,945.51
5. Step 5: Solve for x
   x = 1,826,945.51/1,436.91
6. Step 6: Final answer
   x = 1,271.44