Finding the Fourth Proportional to 3,651.69, 5,038.98 and 2,159.58

Step by Step Solution

1. Step 1: Write the proportion equation
   3,651.69 : 5,038.98 = 2,159.58 : x
2. Step 2: Convert to fraction form
   3,651.69/5,038.98 = 2,159.58/x
3. Step 3: Cross multiply
   3,651.69x = 5,038.98 × 2,159.58
4. Step 4: Simplify right side
   3,651.69x = 10,882,080.43
5. Step 5: Solve for x
   x = 10,882,080.43/3,651.69
6. Step 6: Final answer
   x = 2,980.01