Finding the Fourth Proportional to 1,831.17, 2,748.16 and 953.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,831.17 : 2,748.16 = 953.89 : x
2. Step 2: Convert to fraction form
   1,831.17/2,748.16 = 953.89/x
3. Step 3: Cross multiply
   1,831.17x = 2,748.16 × 953.89
4. Step 4: Simplify right side
   1,831.17x = 2,621,431.30
5. Step 5: Solve for x
   x = 2,621,431.30/1,831.17
6. Step 6: Final answer
   x = 1,431.56