Finding the Fourth Proportional to 2,074.22, 2,862.37 and 1,189.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,074.22 : 2,862.37 = 1,189.96 : x
2. Step 2: Convert to fraction form
   2,074.22/2,862.37 = 1,189.96/x
3. Step 3: Cross multiply
   2,074.22x = 2,862.37 × 1,189.96
4. Step 4: Simplify right side
   2,074.22x = 3,406,099.86
5. Step 5: Solve for x
   x = 3,406,099.86/2,074.22
6. Step 6: Final answer
   x = 1,642.12