Finding the Fourth Proportional to 3,765.63, 5,196.61 and 2,087.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,765.63 : 5,196.61 = 2,087.06 : x
2. Step 2: Convert to fraction form
   3,765.63/5,196.61 = 2,087.06/x
3. Step 3: Cross multiply
   3,765.63x = 5,196.61 × 2,087.06
4. Step 4: Simplify right side
   3,765.63x = 10,845,630.98
5. Step 5: Solve for x
   x = 10,845,630.98/3,765.63
6. Step 6: Final answer
   x = 2,880.17