Finding the Fourth Proportional to 1,333.83, 1,840.78 and 774.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,333.83 : 1,840.78 = 774.48 : x
2. Step 2: Convert to fraction form
   1,333.83/1,840.78 = 774.48/x
3. Step 3: Cross multiply
   1,333.83x = 1,840.78 × 774.48
4. Step 4: Simplify right side
   1,333.83x = 1,425,647.29
5. Step 5: Solve for x
   x = 1,425,647.29/1,333.83
6. Step 6: Final answer
   x = 1,068.84