Finding the Fourth Proportional to 1,141.07, 1,571.94 and 1,085.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,141.07 : 1,571.94 = 1,085.48 : x
2. Step 2: Convert to fraction form
   1,141.07/1,571.94 = 1,085.48/x
3. Step 3: Cross multiply
   1,141.07x = 1,571.94 × 1,085.48
4. Step 4: Simplify right side
   1,141.07x = 1,706,307.47
5. Step 5: Solve for x
   x = 1,706,307.47/1,141.07
6. Step 6: Final answer
   x = 1,495.36