Finding the Fourth Proportional to 1,523.73, 2,287.10 and 1,085.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,523.73 : 2,287.10 = 1,085.47 : x
2. Step 2: Convert to fraction form
   1,523.73/2,287.10 = 1,085.47/x
3. Step 3: Cross multiply
   1,523.73x = 2,287.10 × 1,085.47
4. Step 4: Simplify right side
   1,523.73x = 2,482,584.01
5. Step 5: Solve for x
   x = 2,482,584.01/1,523.73
6. Step 6: Final answer
   x = 1,629.28