Finding the Fourth Proportional to 1,298.25, 1,790.87 and 849.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,298.25 : 1,790.87 = 849.50 : x
2. Step 2: Convert to fraction form
   1,298.25/1,790.87 = 849.50/x
3. Step 3: Cross multiply
   1,298.25x = 1,790.87 × 849.50
4. Step 4: Simplify right side
   1,298.25x = 1,521,330.86
5. Step 5: Solve for x
   x = 1,521,330.86/1,298.25
6. Step 6: Final answer
   x = 1,171.83