Finding the Fourth Proportional to 4,191.63, 5,784.96 and 2,399.78

Step by Step Solution

1. Step 1: Write the proportion equation
   4,191.63 : 5,784.96 = 2,399.78 : x
2. Step 2: Convert to fraction form
   4,191.63/5,784.96 = 2,399.78/x
3. Step 3: Cross multiply
   4,191.63x = 5,784.96 × 2,399.78
4. Step 4: Simplify right side
   4,191.63x = 13,882,631.31
5. Step 5: Solve for x
   x = 13,882,631.31/4,191.63
6. Step 6: Final answer
   x = 3,311.99