Finding the Fourth Proportional to 3,699.93, 5,105.89 and 2,021.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,699.93 : 5,105.89 = 2,021.32 : x
2. Step 2: Convert to fraction form
   3,699.93/5,105.89 = 2,021.32/x
3. Step 3: Cross multiply
   3,699.93x = 5,105.89 × 2,021.32
4. Step 4: Simplify right side
   3,699.93x = 10,320,637.57
5. Step 5: Solve for x
   x = 10,320,637.57/3,699.93
6. Step 6: Final answer
   x = 2,789.41