Finding the Fourth Proportional to 1,443.60, 1,993.26 and 946.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.60 : 1,993.26 = 946.07 : x
2. Step 2: Convert to fraction form
   1,443.60/1,993.26 = 946.07/x
3. Step 3: Cross multiply
   1,443.60x = 1,993.26 × 946.07
4. Step 4: Simplify right side
   1,443.60x = 1,885,753.52
5. Step 5: Solve for x
   x = 1,885,753.52/1,443.60
6. Step 6: Final answer
   x = 1,306.29