Finding the Fourth Proportional to 1,379.34, 1,903.29 and 758.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,379.34 : 1,903.29 = 758.34 : x
2. Step 2: Convert to fraction form
   1,379.34/1,903.29 = 758.34/x
3. Step 3: Cross multiply
   1,379.34x = 1,903.29 × 758.34
4. Step 4: Simplify right side
   1,379.34x = 1,443,340.94
5. Step 5: Solve for x
   x = 1,443,340.94/1,379.34
6. Step 6: Final answer
   x = 1,046.40