Finding the Fourth Proportional to 1,339.47, 1,844.67 and 1,310.85

Step by Step Solution

1. Step 1: Write the proportion equation
   1,339.47 : 1,844.67 = 1,310.85 : x
2. Step 2: Convert to fraction form
   1,339.47/1,844.67 = 1,310.85/x
3. Step 3: Cross multiply
   1,339.47x = 1,844.67 × 1,310.85
4. Step 4: Simplify right side
   1,339.47x = 2,418,085.67
5. Step 5: Solve for x
   x = 2,418,085.67/1,339.47
6. Step 6: Final answer
   x = 1,805.26