Finding the Fourth Proportional to 1,016.58, 1,402.86 and 574.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.58 : 1,402.86 = 574.47 : x
2. Step 2: Convert to fraction form
   1,016.58/1,402.86 = 574.47/x
3. Step 3: Cross multiply
   1,016.58x = 1,402.86 × 574.47
4. Step 4: Simplify right side
   1,016.58x = 805,900.98
5. Step 5: Solve for x
   x = 805,900.98/1,016.58
6. Step 6: Final answer
   x = 792.76