Finding the Fourth Proportional to 1,339.63, 1,850.37 and 1,296.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,339.63 : 1,850.37 = 1,296.58 : x
2. Step 2: Convert to fraction form
   1,339.63/1,850.37 = 1,296.58/x
3. Step 3: Cross multiply
   1,339.63x = 1,850.37 × 1,296.58
4. Step 4: Simplify right side
   1,339.63x = 2,399,152.73
5. Step 5: Solve for x
   x = 2,399,152.73/1,339.63
6. Step 6: Final answer
   x = 1,790.91