Finding the Fourth Proportional to 1,513.73, 2,271.42 and 774.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,513.73 : 2,271.42 = 774.16 : x
2. Step 2: Convert to fraction form
   1,513.73/2,271.42 = 774.16/x
3. Step 3: Cross multiply
   1,513.73x = 2,271.42 × 774.16
4. Step 4: Simplify right side
   1,513.73x = 1,758,436.83
5. Step 5: Solve for x
   x = 1,758,436.83/1,513.73
6. Step 6: Final answer
   x = 1,161.66