Finding the Fourth Proportional to 1,064.42, 1,595.89 and 756.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,064.42 : 1,595.89 = 756.89 : x
2. Step 2: Convert to fraction form
   1,064.42/1,595.89 = 756.89/x
3. Step 3: Cross multiply
   1,064.42x = 1,595.89 × 756.89
4. Step 4: Simplify right side
   1,064.42x = 1,207,909.40
5. Step 5: Solve for x
   x = 1,207,909.40/1,064.42
6. Step 6: Final answer
   x = 1,134.81