Finding the Fourth Proportional to 1,347.69, 1,859.81 and 758.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,347.69 : 1,859.81 = 758.21 : x
2. Step 2: Convert to fraction form
   1,347.69/1,859.81 = 758.21/x
3. Step 3: Cross multiply
   1,347.69x = 1,859.81 × 758.21
4. Step 4: Simplify right side
   1,347.69x = 1,410,127.40
5. Step 5: Solve for x
   x = 1,410,127.40/1,347.69
6. Step 6: Final answer
   x = 1,046.33