Finding the Fourth Proportional to 1,054.09, 1,454.56 and 588.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,054.09 : 1,454.56 = 588.25 : x
2. Step 2: Convert to fraction form
   1,054.09/1,454.56 = 588.25/x
3. Step 3: Cross multiply
   1,054.09x = 1,454.56 × 588.25
4. Step 4: Simplify right side
   1,054.09x = 855,644.92
5. Step 5: Solve for x
   x = 855,644.92/1,054.09
6. Step 6: Final answer
   x = 811.74