Finding the Fourth Proportional to 1,334.99, 1,842.28 and 775.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,334.99 : 1,842.28 = 775.48 : x
2. Step 2: Convert to fraction form
   1,334.99/1,842.28 = 775.48/x
3. Step 3: Cross multiply
   1,334.99x = 1,842.28 × 775.48
4. Step 4: Simplify right side
   1,334.99x = 1,428,647.42
5. Step 5: Solve for x
   x = 1,428,647.42/1,334.99
6. Step 6: Final answer
   x = 1,070.16