Finding the Fourth Proportional to 1,055.34, 1,456.36 and 583.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,055.34 : 1,456.36 = 583.18 : x
2. Step 2: Convert to fraction form
   1,055.34/1,456.36 = 583.18/x
3. Step 3: Cross multiply
   1,055.34x = 1,456.36 × 583.18
4. Step 4: Simplify right side
   1,055.34x = 849,314.93
5. Step 5: Solve for x
   x = 849,314.93/1,055.34
6. Step 6: Final answer
   x = 804.78