Finding the Fourth Proportional to 1,568.76, 2,174.81 and 1,485.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,568.76 : 2,174.81 = 1,485.54 : x
2. Step 2: Convert to fraction form
   1,568.76/2,174.81 = 1,485.54/x
3. Step 3: Cross multiply
   1,568.76x = 2,174.81 × 1,485.54
4. Step 4: Simplify right side
   1,568.76x = 3,230,759.82
5. Step 5: Solve for x
   x = 3,230,759.82/1,568.76
6. Step 6: Final answer
   x = 2,059.44