Finding the Fourth Proportional to 1,362.80, 1,880.74 and 773.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,362.80 : 1,880.74 = 773.52 : x
2. Step 2: Convert to fraction form
   1,362.80/1,880.74 = 773.52/x
3. Step 3: Cross multiply
   1,362.80x = 1,880.74 × 773.52
4. Step 4: Simplify right side
   1,362.80x = 1,454,790.00
5. Step 5: Solve for x
   x = 1,454,790.00/1,362.80
6. Step 6: Final answer
   x = 1,067.50