Finding the Fourth Proportional to 4,200.54, 5,799.15 and 2,786.15

Step by Step Solution

1. Step 1: Write the proportion equation
   4,200.54 : 5,799.15 = 2,786.15 : x
2. Step 2: Convert to fraction form
   4,200.54/5,799.15 = 2,786.15/x
3. Step 3: Cross multiply
   4,200.54x = 5,799.15 × 2,786.15
4. Step 4: Simplify right side
   4,200.54x = 16,157,301.77
5. Step 5: Solve for x
   x = 16,157,301.77/4,200.54
6. Step 6: Final answer
   x = 3,846.48