Finding the Fourth Proportional to 1,629.76, 2,443.91 and 971.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,629.76 : 2,443.91 = 971.94 : x
2. Step 2: Convert to fraction form
   1,629.76/2,443.91 = 971.94/x
3. Step 3: Cross multiply
   1,629.76x = 2,443.91 × 971.94
4. Step 4: Simplify right side
   1,629.76x = 2,375,329.03
5. Step 5: Solve for x
   x = 2,375,329.03/1,629.76
6. Step 6: Final answer
   x = 1,457.47