Finding the Fourth Proportional to 1,334.16, 1,840.92 and 774.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,334.16 : 1,840.92 = 774.78 : x
2. Step 2: Convert to fraction form
   1,334.16/1,840.92 = 774.78/x
3. Step 3: Cross multiply
   1,334.16x = 1,840.92 × 774.78
4. Step 4: Simplify right side
   1,334.16x = 1,426,308.00
5. Step 5: Solve for x
   x = 1,426,308.00/1,334.16
6. Step 6: Final answer
   x = 1,069.07