Finding the Fourth Proportional to 2,783.20, 3,840.72 and 1,541.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,783.20 : 3,840.72 = 1,541.12 : x
2. Step 2: Convert to fraction form
   2,783.20/3,840.72 = 1,541.12/x
3. Step 3: Cross multiply
   2,783.20x = 3,840.72 × 1,541.12
4. Step 4: Simplify right side
   2,783.20x = 5,919,010.41
5. Step 5: Solve for x
   x = 5,919,010.41/2,783.20
6. Step 6: Final answer
   x = 2,126.69