Finding the Fourth Proportional to 1,472.03, 2,030.27 and 912.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,472.03 : 2,030.27 = 912.78 : x
2. Step 2: Convert to fraction form
   1,472.03/2,030.27 = 912.78/x
3. Step 3: Cross multiply
   1,472.03x = 2,030.27 × 912.78
4. Step 4: Simplify right side
   1,472.03x = 1,853,185.29
5. Step 5: Solve for x
   x = 1,853,185.29/1,472.03
6. Step 6: Final answer
   x = 1,258.94