Finding the Fourth Proportional to 3,723.37, 5,606.69 and 2,690.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,723.37 : 5,606.69 = 2,690.42 : x
2. Step 2: Convert to fraction form
   3,723.37/5,606.69 = 2,690.42/x
3. Step 3: Cross multiply
   3,723.37x = 5,606.69 × 2,690.42
4. Step 4: Simplify right side
   3,723.37x = 15,084,309.42
5. Step 5: Solve for x
   x = 15,084,309.42/3,723.37
6. Step 6: Final answer
   x = 4,051.25