Finding the Fourth Proportional to 3,699.63, 5,105.57 and 2,127.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,699.63 : 5,105.57 = 2,127.83 : x
2. Step 2: Convert to fraction form
   3,699.63/5,105.57 = 2,127.83/x
3. Step 3: Cross multiply
   3,699.63x = 5,105.57 × 2,127.83
4. Step 4: Simplify right side
   3,699.63x = 10,863,748.85
5. Step 5: Solve for x
   x = 10,863,748.85/3,699.63
6. Step 6: Final answer
   x = 2,936.44