Finding the Fourth Proportional to 1,334.78, 1,841.98 and 775.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,334.78 : 1,841.98 = 775.36 : x
2. Step 2: Convert to fraction form
   1,334.78/1,841.98 = 775.36/x
3. Step 3: Cross multiply
   1,334.78x = 1,841.98 × 775.36
4. Step 4: Simplify right side
   1,334.78x = 1,428,197.61
5. Step 5: Solve for x
   x = 1,428,197.61/1,334.78
6. Step 6: Final answer
   x = 1,069.99