Finding the Fourth Proportional to 3,046.89, 4,200.89 and 2,486.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,046.89 : 4,200.89 = 2,486.79 : x
2. Step 2: Convert to fraction form
   3,046.89/4,200.89 = 2,486.79/x
3. Step 3: Cross multiply
   3,046.89x = 4,200.89 × 2,486.79
4. Step 4: Simplify right side
   3,046.89x = 10,446,718.81
5. Step 5: Solve for x
   x = 10,446,718.81/3,046.89
6. Step 6: Final answer
   x = 3,428.65