Finding the Fourth Proportional to 2,560.01, 3,840.62 and 1,099.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,560.01 : 3,840.62 = 1,099.31 : x
2. Step 2: Convert to fraction form
   2,560.01/3,840.62 = 1,099.31/x
3. Step 3: Cross multiply
   2,560.01x = 3,840.62 × 1,099.31
4. Step 4: Simplify right side
   2,560.01x = 4,222,007.27
5. Step 5: Solve for x
   x = 4,222,007.27/2,560.01
6. Step 6: Final answer
   x = 1,649.22