Finding the Fourth Proportional to 1,404.26, 1,937.85 and 774.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.26 : 1,937.85 = 774.84 : x
2. Step 2: Convert to fraction form
   1,404.26/1,937.85 = 774.84/x
3. Step 3: Cross multiply
   1,404.26x = 1,937.85 × 774.84
4. Step 4: Simplify right side
   1,404.26x = 1,501,524.78
5. Step 5: Solve for x
   x = 1,501,524.78/1,404.26
6. Step 6: Final answer
   x = 1,069.26