Finding the Fourth Proportional to 1,544.45, 2,131.37 and 845.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,544.45 : 2,131.37 = 845.82 : x
2. Step 2: Convert to fraction form
   1,544.45/2,131.37 = 845.82/x
3. Step 3: Cross multiply
   1,544.45x = 2,131.37 × 845.82
4. Step 4: Simplify right side
   1,544.45x = 1,802,751.14
5. Step 5: Solve for x
   x = 1,802,751.14/1,544.45
6. Step 6: Final answer
   x = 1,167.25