Finding the Fourth Proportional to 1,570.50, 2,356.83 and 544.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,570.50 : 2,356.83 = 544.50 : x
2. Step 2: Convert to fraction form
   1,570.50/2,356.83 = 544.50/x
3. Step 3: Cross multiply
   1,570.50x = 2,356.83 × 544.50
4. Step 4: Simplify right side
   1,570.50x = 1,283,293.94
5. Step 5: Solve for x
   x = 1,283,293.94/1,570.50
6. Step 6: Final answer
   x = 817.12