Finding the Fourth Proportional to 2,830.91, 4,243.94 and 1,074.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,830.91 : 4,243.94 = 1,074.92 : x
2. Step 2: Convert to fraction form
   2,830.91/4,243.94 = 1,074.92/x
3. Step 3: Cross multiply
   2,830.91x = 4,243.94 × 1,074.92
4. Step 4: Simplify right side
   2,830.91x = 4,561,869.39
5. Step 5: Solve for x
   x = 4,561,869.39/2,830.91
6. Step 6: Final answer
   x = 1,611.45