Finding the Fourth Proportional to 1,333.67, 1,840.21 and 774.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,333.67 : 1,840.21 = 774.09 : x
2. Step 2: Convert to fraction form
   1,333.67/1,840.21 = 774.09/x
3. Step 3: Cross multiply
   1,333.67x = 1,840.21 × 774.09
4. Step 4: Simplify right side
   1,333.67x = 1,424,486.22
5. Step 5: Solve for x
   x = 1,424,486.22/1,333.67
6. Step 6: Final answer
   x = 1,068.10