Finding the Fourth Proportional to 3,659.80, 5,050.20 and 2,087.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,659.80 : 5,050.20 = 2,087.52 : x
2. Step 2: Convert to fraction form
   3,659.80/5,050.20 = 2,087.52/x
3. Step 3: Cross multiply
   3,659.80x = 5,050.20 × 2,087.52
4. Step 4: Simplify right side
   3,659.80x = 10,542,393.50
5. Step 5: Solve for x
   x = 10,542,393.50/3,659.80
6. Step 6: Final answer
   x = 2,880.59