Finding the Fourth Proportional to 3,661.50, 5,051.40 and 2,168.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,661.50 : 5,051.40 = 2,168.88 : x
2. Step 2: Convert to fraction form
   3,661.50/5,051.40 = 2,168.88/x
3. Step 3: Cross multiply
   3,661.50x = 5,051.40 × 2,168.88
4. Step 4: Simplify right side
   3,661.50x = 10,955,880.43
5. Step 5: Solve for x
   x = 10,955,880.43/3,661.50
6. Step 6: Final answer
   x = 2,992.18