Finding the Fourth Proportional to 1,362.04, 1,879.71 and 772.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,362.04 : 1,879.71 = 772.72 : x
2. Step 2: Convert to fraction form
   1,362.04/1,879.71 = 772.72/x
3. Step 3: Cross multiply
   1,362.04x = 1,879.71 × 772.72
4. Step 4: Simplify right side
   1,362.04x = 1,452,489.51
5. Step 5: Solve for x
   x = 1,452,489.51/1,362.04
6. Step 6: Final answer
   x = 1,066.41