Finding the Fourth Proportional to 3,429.92, 5,144.72 and 2,386.84

Step by Step Solution

1. Step 1: Write the proportion equation
   3,429.92 : 5,144.72 = 2,386.84 : x
2. Step 2: Convert to fraction form
   3,429.92/5,144.72 = 2,386.84/x
3. Step 3: Cross multiply
   3,429.92x = 5,144.72 × 2,386.84
4. Step 4: Simplify right side
   3,429.92x = 12,279,623.48
5. Step 5: Solve for x
   x = 12,279,623.48/3,429.92
6. Step 6: Final answer
   x = 3,580.15