Finding the Fourth Proportional to 2,659.80, 3,979.02 and 2,298.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,659.80 : 3,979.02 = 2,298.48 : x
2. Step 2: Convert to fraction form
   2,659.80/3,979.02 = 2,298.48/x
3. Step 3: Cross multiply
   2,659.80x = 3,979.02 × 2,298.48
4. Step 4: Simplify right side
   2,659.80x = 9,145,697.89
5. Step 5: Solve for x
   x = 9,145,697.89/2,659.80
6. Step 6: Final answer
   x = 3,438.49