Finding the Fourth Proportional to 1,016.48, 1,402.72 and 574.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.48 : 1,402.72 = 574.37 : x
2. Step 2: Convert to fraction form
   1,016.48/1,402.72 = 574.37/x
3. Step 3: Cross multiply
   1,016.48x = 1,402.72 × 574.37
4. Step 4: Simplify right side
   1,016.48x = 805,671.84
5. Step 5: Solve for x
   x = 805,671.84/1,016.48
6. Step 6: Final answer
   x = 792.61