Finding the Fourth Proportional to 1,471.94, 2,031.27 and 912.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,471.94 : 2,031.27 = 912.23 : x
2. Step 2: Convert to fraction form
   1,471.94/2,031.27 = 912.23/x
3. Step 3: Cross multiply
   1,471.94x = 2,031.27 × 912.23
4. Step 4: Simplify right side
   1,471.94x = 1,852,985.43
5. Step 5: Solve for x
   x = 1,852,985.43/1,471.94
6. Step 6: Final answer
   x = 1,258.87