Finding the Fourth Proportional to 1,333.45, 1,839.88 and 773.85

Step by Step Solution

1. Step 1: Write the proportion equation
   1,333.45 : 1,839.88 = 773.85 : x
2. Step 2: Convert to fraction form
   1,333.45/1,839.88 = 773.85/x
3. Step 3: Cross multiply
   1,333.45x = 1,839.88 × 773.85
4. Step 4: Simplify right side
   1,333.45x = 1,423,782.30
5. Step 5: Solve for x
   x = 1,423,782.30/1,333.45
6. Step 6: Final answer
   x = 1,067.74