Finding the Fourth Proportional to 3,790.89, 5,677.49 and 3,659.51

Step by Step Solution

1. Step 1: Write the proportion equation
   3,790.89 : 5,677.49 = 3,659.51 : x
2. Step 2: Convert to fraction form
   3,790.89/5,677.49 = 3,659.51/x
3. Step 3: Cross multiply
   3,790.89x = 5,677.49 × 3,659.51
4. Step 4: Simplify right side
   3,790.89x = 20,776,784.74
5. Step 5: Solve for x
   x = 20,776,784.74/3,790.89
6. Step 6: Final answer
   x = 5,480.71