Finding the Fourth Proportional to 3,699.72, 5,550.87 and 2,311.43

Step by Step Solution

1. Step 1: Write the proportion equation
   3,699.72 : 5,550.87 = 2,311.43 : x
2. Step 2: Convert to fraction form
   3,699.72/5,550.87 = 2,311.43/x
3. Step 3: Cross multiply
   3,699.72x = 5,550.87 × 2,311.43
4. Step 4: Simplify right side
   3,699.72x = 12,830,419.69
5. Step 5: Solve for x
   x = 12,830,419.69/3,699.72
6. Step 6: Final answer
   x = 3,467.94