Finding the Fourth Proportional to 3,699.60, 5,105.16 and 2,127.39

Step by Step Solution

1. Step 1: Write the proportion equation
   3,699.60 : 5,105.16 = 2,127.39 : x
2. Step 2: Convert to fraction form
   3,699.60/5,105.16 = 2,127.39/x
3. Step 3: Cross multiply
   3,699.60x = 5,105.16 × 2,127.39
4. Step 4: Simplify right side
   3,699.60x = 10,860,666.33
5. Step 5: Solve for x
   x = 10,860,666.33/3,699.60
6. Step 6: Final answer
   x = 2,935.63