Finding the Fourth Proportional to 1,303.69, 1,798.88 and 772.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,303.69 : 1,798.88 = 772.27 : x
2. Step 2: Convert to fraction form
   1,303.69/1,798.88 = 772.27/x
3. Step 3: Cross multiply
   1,303.69x = 1,798.88 × 772.27
4. Step 4: Simplify right side
   1,303.69x = 1,389,221.06
5. Step 5: Solve for x
   x = 1,389,221.06/1,303.69
6. Step 6: Final answer
   x = 1,065.61