Finding the Fourth Proportional to 1,012.14, 1,517.58 and 362.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,012.14 : 1,517.58 = 362.70 : x
2. Step 2: Convert to fraction form
   1,012.14/1,517.58 = 362.70/x
3. Step 3: Cross multiply
   1,012.14x = 1,517.58 × 362.70
4. Step 4: Simplify right side
   1,012.14x = 550,426.27
5. Step 5: Solve for x
   x = 550,426.27/1,012.14
6. Step 6: Final answer
   x = 543.82