Finding the Fourth Proportional to 1,050.27, 1,449.86 and 770.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,050.27 : 1,449.86 = 770.52 : x
2. Step 2: Convert to fraction form
   1,050.27/1,449.86 = 770.52/x
3. Step 3: Cross multiply
   1,050.27x = 1,449.86 × 770.52
4. Step 4: Simplify right side
   1,050.27x = 1,117,142.27
5. Step 5: Solve for x
   x = 1,117,142.27/1,050.27
6. Step 6: Final answer
   x = 1,063.67