Finding the Fourth Proportional to 2,009.20, 2,772.72 and 1,124.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,009.20 : 2,772.72 = 1,124.98 : x
2. Step 2: Convert to fraction form
   2,009.20/2,772.72 = 1,124.98/x
3. Step 3: Cross multiply
   2,009.20x = 2,772.72 × 1,124.98
4. Step 4: Simplify right side
   2,009.20x = 3,119,254.55
5. Step 5: Solve for x
   x = 3,119,254.55/2,009.20
6. Step 6: Final answer
   x = 1,552.49