Finding the Fourth Proportional to 3,649.22, 5,036.42 and 2,158.01

Step by Step Solution

1. Step 1: Write the proportion equation
   3,649.22 : 5,036.42 = 2,158.01 : x
2. Step 2: Convert to fraction form
   3,649.22/5,036.42 = 2,158.01/x
3. Step 3: Cross multiply
   3,649.22x = 5,036.42 × 2,158.01
4. Step 4: Simplify right side
   3,649.22x = 10,868,633.93
5. Step 5: Solve for x
   x = 10,868,633.93/3,649.22
6. Step 6: Final answer
   x = 2,978.34