Finding the Fourth Proportional to 1,362.68, 1,880.34 and 773.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,362.68 : 1,880.34 = 773.09 : x
2. Step 2: Convert to fraction form
   1,362.68/1,880.34 = 773.09/x
3. Step 3: Cross multiply
   1,362.68x = 1,880.34 × 773.09
4. Step 4: Simplify right side
   1,362.68x = 1,453,672.05
5. Step 5: Solve for x
   x = 1,453,672.05/1,362.68
6. Step 6: Final answer
   x = 1,066.77