Finding the Fourth Proportional to 1,085.93, 1,498.56 and 588.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,085.93 : 1,498.56 = 588.58 : x
2. Step 2: Convert to fraction form
   1,085.93/1,498.56 = 588.58/x
3. Step 3: Cross multiply
   1,085.93x = 1,498.56 × 588.58
4. Step 4: Simplify right side
   1,085.93x = 882,016.49
5. Step 5: Solve for x
   x = 882,016.49/1,085.93
6. Step 6: Final answer
   x = 812.22