Finding the Fourth Proportional to 2,883.56, 3,978.44 and 1,763.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,883.56 : 3,978.44 = 1,763.31 : x
2. Step 2: Convert to fraction form
   2,883.56/3,978.44 = 1,763.31/x
3. Step 3: Cross multiply
   2,883.56x = 3,978.44 × 1,763.31
4. Step 4: Simplify right side
   2,883.56x = 7,015,214.22
5. Step 5: Solve for x
   x = 7,015,214.22/2,883.56
6. Step 6: Final answer
   x = 2,432.84