Finding the Fourth Proportional to 1,333.69, 1,840.47 and 774.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,333.69 : 1,840.47 = 774.15 : x
2. Step 2: Convert to fraction form
   1,333.69/1,840.47 = 774.15/x
3. Step 3: Cross multiply
   1,333.69x = 1,840.47 × 774.15
4. Step 4: Simplify right side
   1,333.69x = 1,424,799.85
5. Step 5: Solve for x
   x = 1,424,799.85/1,333.69
6. Step 6: Final answer
   x = 1,068.31