Finding the Fourth Proportional to 1,570.50, 2,351.52 and 984.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,570.50 : 2,351.52 = 984.81 : x
2. Step 2: Convert to fraction form
   1,570.50/2,351.52 = 984.81/x
3. Step 3: Cross multiply
   1,570.50x = 2,351.52 × 984.81
4. Step 4: Simplify right side
   1,570.50x = 2,315,800.41
5. Step 5: Solve for x
   x = 2,315,800.41/1,570.50
6. Step 6: Final answer
   x = 1,474.56