Finding the Fourth Proportional to 2,074.48, 2,862.83 and 1,190.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,074.48 : 2,862.83 = 1,190.21 : x
2. Step 2: Convert to fraction form
   2,074.48/2,862.83 = 1,190.21/x
3. Step 3: Cross multiply
   2,074.48x = 2,862.83 × 1,190.21
4. Step 4: Simplify right side
   2,074.48x = 3,407,366.96
5. Step 5: Solve for x
   x = 3,407,366.96/2,074.48
6. Step 6: Final answer
   x = 1,642.52