Finding the Fourth Proportional to 1,362.56, 1,880.27 and 773.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,362.56 : 1,880.27 = 773.13 : x
2. Step 2: Convert to fraction form
   1,362.56/1,880.27 = 773.13/x
3. Step 3: Cross multiply
   1,362.56x = 1,880.27 × 773.13
4. Step 4: Simplify right side
   1,362.56x = 1,453,689.48
5. Step 5: Solve for x
   x = 1,453,689.48/1,362.56
6. Step 6: Final answer
   x = 1,066.88