Finding the Fourth Proportional to 1,334.20, 1,841.01 and 774.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,334.20 : 1,841.01 = 774.72 : x
2. Step 2: Convert to fraction form
   1,334.20/1,841.01 = 774.72/x
3. Step 3: Cross multiply
   1,334.20x = 1,841.01 × 774.72
4. Step 4: Simplify right side
   1,334.20x = 1,426,267.27
5. Step 5: Solve for x
   x = 1,426,267.27/1,334.20
6. Step 6: Final answer
   x = 1,069.01