Finding the Fourth Proportional to 1,362.06, 1,879.38 and 764.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,362.06 : 1,879.38 = 764.46 : x
2. Step 2: Convert to fraction form
   1,362.06/1,879.38 = 764.46/x
3. Step 3: Cross multiply
   1,362.06x = 1,879.38 × 764.46
4. Step 4: Simplify right side
   1,362.06x = 1,436,710.83
5. Step 5: Solve for x
   x = 1,436,710.83/1,362.06
6. Step 6: Final answer
   x = 1,054.81