Finding the Fourth Proportional to 3,699.95, 5,105.43 and 2,127.74

Step by Step Solution

1. Step 1: Write the proportion equation
   3,699.95 : 5,105.43 = 2,127.74 : x
2. Step 2: Convert to fraction form
   3,699.95/5,105.43 = 2,127.74/x
3. Step 3: Cross multiply
   3,699.95x = 5,105.43 × 2,127.74
4. Step 4: Simplify right side
   3,699.95x = 10,863,002.10
5. Step 5: Solve for x
   x = 10,863,002.10/3,699.95
6. Step 6: Final answer
   x = 2,935.99