Finding the Fourth Proportional to 3,659.90, 5,050.90 and 2,087.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,659.90 : 5,050.90 = 2,087.98 : x
2. Step 2: Convert to fraction form
   3,659.90/5,050.90 = 2,087.98/x
3. Step 3: Cross multiply
   3,659.90x = 5,050.90 × 2,087.98
4. Step 4: Simplify right side
   3,659.90x = 10,546,178.18
5. Step 5: Solve for x
   x = 10,546,178.18/3,659.90
6. Step 6: Final answer
   x = 2,881.55