Finding the Fourth Proportional to 1,362.64, 1,880.38 and 773.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,362.64 : 1,880.38 = 773.16 : x
2. Step 2: Convert to fraction form
   1,362.64/1,880.38 = 773.16/x
3. Step 3: Cross multiply
   1,362.64x = 1,880.38 × 773.16
4. Step 4: Simplify right side
   1,362.64x = 1,453,821.33
5. Step 5: Solve for x
   x = 1,453,821.33/1,362.64
6. Step 6: Final answer
   x = 1,066.92