Finding the Fourth Proportional to 2,085.69, 3,127.20 and 1,045.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,085.69 : 3,127.20 = 1,045.41 : x
2. Step 2: Convert to fraction form
   2,085.69/3,127.20 = 1,045.41/x
3. Step 3: Cross multiply
   2,085.69x = 3,127.20 × 1,045.41
4. Step 4: Simplify right side
   2,085.69x = 3,269,206.15
5. Step 5: Solve for x
   x = 3,269,206.15/2,085.69
6. Step 6: Final answer
   x = 1,567.45