Finding the Fourth Proportional to 3,985.29, 5,500.62 and 2,659.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,985.29 : 5,500.62 = 2,659.50 : x
2. Step 2: Convert to fraction form
   3,985.29/5,500.62 = 2,659.50/x
3. Step 3: Cross multiply
   3,985.29x = 5,500.62 × 2,659.50
4. Step 4: Simplify right side
   3,985.29x = 14,628,898.89
5. Step 5: Solve for x
   x = 14,628,898.89/3,985.29
6. Step 6: Final answer
   x = 3,670.72