Finding the Fourth Proportional to 1,333.61, 1,840.34 and 774.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,333.61 : 1,840.34 = 774.12 : x
2. Step 2: Convert to fraction form
   1,333.61/1,840.34 = 774.12/x
3. Step 3: Cross multiply
   1,333.61x = 1,840.34 × 774.12
4. Step 4: Simplify right side
   1,333.61x = 1,424,640.13
5. Step 5: Solve for x
   x = 1,424,640.13/1,333.61
6. Step 6: Final answer
   x = 1,068.26