Finding the Fourth Proportional to 1,457.69, 2,011.30 and 868.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,457.69 : 2,011.30 = 868.41 : x
2. Step 2: Convert to fraction form
   1,457.69/2,011.30 = 868.41/x
3. Step 3: Cross multiply
   1,457.69x = 2,011.30 × 868.41
4. Step 4: Simplify right side
   1,457.69x = 1,746,630.86
5. Step 5: Solve for x
   x = 1,746,630.86/1,457.69
6. Step 6: Final answer
   x = 1,198.22