Finding the Fourth Proportional to 1,348.38, 1,860.75 and 758.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,348.38 : 1,860.75 = 758.91 : x
2. Step 2: Convert to fraction form
   1,348.38/1,860.75 = 758.91/x
3. Step 3: Cross multiply
   1,348.38x = 1,860.75 × 758.91
4. Step 4: Simplify right side
   1,348.38x = 1,412,141.78
5. Step 5: Solve for x
   x = 1,412,141.78/1,348.38
6. Step 6: Final answer
   x = 1,047.29