Finding the Fourth Proportional to 1,298.16, 1,790.24 and 849.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,298.16 : 1,790.24 = 849.37 : x
2. Step 2: Convert to fraction form
   1,298.16/1,790.24 = 849.37/x
3. Step 3: Cross multiply
   1,298.16x = 1,790.24 × 849.37
4. Step 4: Simplify right side
   1,298.16x = 1,520,576.15
5. Step 5: Solve for x
   x = 1,520,576.15/1,298.16
6. Step 6: Final answer
   x = 1,171.33