Finding the Fourth Proportional to 1,362.57, 1,880.40 and 773.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,362.57 : 1,880.40 = 773.22 : x
2. Step 2: Convert to fraction form
   1,362.57/1,880.40 = 773.22/x
3. Step 3: Cross multiply
   1,362.57x = 1,880.40 × 773.22
4. Step 4: Simplify right side
   1,362.57x = 1,453,962.89
5. Step 5: Solve for x
   x = 1,453,962.89/1,362.57
6. Step 6: Final answer
   x = 1,067.07