Finding the Fourth Proportional to 2,563.06, 3,840.54 and 1,866.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,563.06 : 3,840.54 = 1,866.52 : x
2. Step 2: Convert to fraction form
   2,563.06/3,840.54 = 1,866.52/x
3. Step 3: Cross multiply
   2,563.06x = 3,840.54 × 1,866.52
4. Step 4: Simplify right side
   2,563.06x = 7,168,453.02
5. Step 5: Solve for x
   x = 7,168,453.02/2,563.06
6. Step 6: Final answer
   x = 2,796.83