Finding the Fourth Proportional to 1,306.94, 1,802.72 and 834.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,306.94 : 1,802.72 = 834.98 : x
2. Step 2: Convert to fraction form
   1,306.94/1,802.72 = 834.98/x
3. Step 3: Cross multiply
   1,306.94x = 1,802.72 × 834.98
4. Step 4: Simplify right side
   1,306.94x = 1,505,228.22
5. Step 5: Solve for x
   x = 1,505,228.22/1,306.94
6. Step 6: Final answer
   x = 1,151.72