Finding the Fourth Proportional to 3,009.78, 4,515.12 and 1,061.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,009.78 : 4,515.12 = 1,061.52 : x
2. Step 2: Convert to fraction form
   3,009.78/4,515.12 = 1,061.52/x
3. Step 3: Cross multiply
   3,009.78x = 4,515.12 × 1,061.52
4. Step 4: Simplify right side
   3,009.78x = 4,792,890.18
5. Step 5: Solve for x
   x = 4,792,890.18/3,009.78
6. Step 6: Final answer
   x = 1,592.44