Finding the Fourth Proportional to 1,362.03, 1,879.50 and 772.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,362.03 : 1,879.50 = 772.45 : x
2. Step 2: Convert to fraction form
   1,362.03/1,879.50 = 772.45/x
3. Step 3: Cross multiply
   1,362.03x = 1,879.50 × 772.45
4. Step 4: Simplify right side
   1,362.03x = 1,451,828.55
5. Step 5: Solve for x
   x = 1,451,828.55/1,362.03
6. Step 6: Final answer
   x = 1,065.93