Finding the Fourth Proportional to 1,898.56, 2,846.49 and 727.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,898.56 : 2,846.49 = 727.57 : x
2. Step 2: Convert to fraction form
   1,898.56/2,846.49 = 727.57/x
3. Step 3: Cross multiply
   1,898.56x = 2,846.49 × 727.57
4. Step 4: Simplify right side
   1,898.56x = 2,071,020.73
5. Step 5: Solve for x
   x = 2,071,020.73/1,898.56
6. Step 6: Final answer
   x = 1,090.84