Finding the Fourth Proportional to 1,334.34, 1,841.31 and 774.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,334.34 : 1,841.31 = 774.77 : x
2. Step 2: Convert to fraction form
   1,334.34/1,841.31 = 774.77/x
3. Step 3: Cross multiply
   1,334.34x = 1,841.31 × 774.77
4. Step 4: Simplify right side
   1,334.34x = 1,426,591.75
5. Step 5: Solve for x
   x = 1,426,591.75/1,334.34
6. Step 6: Final answer
   x = 1,069.14