Finding the Fourth Proportional to 5,910.42, 8,864.55 and 2,399.58

Step by Step Solution

1. Step 1: Write the proportion equation
   5,910.42 : 8,864.55 = 2,399.58 : x
2. Step 2: Convert to fraction form
   5,910.42/8,864.55 = 2,399.58/x
3. Step 3: Cross multiply
   5,910.42x = 8,864.55 × 2,399.58
4. Step 4: Simplify right side
   5,910.42x = 21,271,196.89
5. Step 5: Solve for x
   x = 21,271,196.89/5,910.42
6. Step 6: Final answer
   x = 3,598.93