Finding the Fourth Proportional to 2,789.67, 4,186.22 and 1,146.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,789.67 : 4,186.22 = 1,146.23 : x
2. Step 2: Convert to fraction form
   2,789.67/4,186.22 = 1,146.23/x
3. Step 3: Cross multiply
   2,789.67x = 4,186.22 × 1,146.23
4. Step 4: Simplify right side
   2,789.67x = 4,798,370.95
5. Step 5: Solve for x
   x = 4,798,370.95/2,789.67
6. Step 6: Final answer
   x = 1,720.05