Finding the Fourth Proportional to 2,074.28, 2,862.42 and 1,190.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,074.28 : 2,862.42 = 1,190.16 : x
2. Step 2: Convert to fraction form
   2,074.28/2,862.42 = 1,190.16/x
3. Step 3: Cross multiply
   2,074.28x = 2,862.42 × 1,190.16
4. Step 4: Simplify right side
   2,074.28x = 3,406,737.79
5. Step 5: Solve for x
   x = 3,406,737.79/2,074.28
6. Step 6: Final answer
   x = 1,642.37