Finding the Fourth Proportional to 3,779.46, 5,662.79 and 2,315.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,779.46 : 5,662.79 = 2,315.56 : x
2. Step 2: Convert to fraction form
   3,779.46/5,662.79 = 2,315.56/x
3. Step 3: Cross multiply
   3,779.46x = 5,662.79 × 2,315.56
4. Step 4: Simplify right side
   3,779.46x = 13,112,530.01
5. Step 5: Solve for x
   x = 13,112,530.01/3,779.46
6. Step 6: Final answer
   x = 3,469.42