Finding the Fourth Proportional to 1,055.53, 1,456.61 and 583.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,055.53 : 1,456.61 = 583.41 : x
2. Step 2: Convert to fraction form
   1,055.53/1,456.61 = 583.41/x
3. Step 3: Cross multiply
   1,055.53x = 1,456.61 × 583.41
4. Step 4: Simplify right side
   1,055.53x = 849,792.10
5. Step 5: Solve for x
   x = 849,792.10/1,055.53
6. Step 6: Final answer
   x = 805.09