Finding the Fourth Proportional to 2,010.72, 3,009.60 and 1,578.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,010.72 : 3,009.60 = 1,578.72 : x
2. Step 2: Convert to fraction form
   2,010.72/3,009.60 = 1,578.72/x
3. Step 3: Cross multiply
   2,010.72x = 3,009.60 × 1,578.72
4. Step 4: Simplify right side
   2,010.72x = 4,751,315.71
5. Step 5: Solve for x
   x = 4,751,315.71/2,010.72
6. Step 6: Final answer
   x = 2,362.99