Finding the Fourth Proportional to 3,456.12, 5,180.88 and 1,146

Step by Step Solution

1. Step 1: Write the proportion equation
   3,456.12 : 5,180.88 = 1,146 : x
2. Step 2: Convert to fraction form
   3,456.12/5,180.88 = 1,146/x
3. Step 3: Cross multiply
   3,456.12x = 5,180.88 × 1,146
4. Step 4: Simplify right side
   3,456.12x = 5,937,288.48
5. Step 5: Solve for x
   x = 5,937,288.48/3,456.12
6. Step 6: Final answer
   x = 1,717.91