Finding the Fourth Proportional to 1,488.59, 2,234.27 and 758.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.59 : 2,234.27 = 758.69 : x
2. Step 2: Convert to fraction form
   1,488.59/2,234.27 = 758.69/x
3. Step 3: Cross multiply
   1,488.59x = 2,234.27 × 758.69
4. Step 4: Simplify right side
   1,488.59x = 1,695,109.03
5. Step 5: Solve for x
   x = 1,695,109.03/1,488.59
6. Step 6: Final answer
   x = 1,138.74