Finding the Fourth Proportional to 1,085.07, 1,497.41 and 587.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,085.07 : 1,497.41 = 587.71 : x
2. Step 2: Convert to fraction form
   1,085.07/1,497.41 = 587.71/x
3. Step 3: Cross multiply
   1,085.07x = 1,497.41 × 587.71
4. Step 4: Simplify right side
   1,085.07x = 880,042.83
5. Step 5: Solve for x
   x = 880,042.83/1,085.07
6. Step 6: Final answer
   x = 811.05