Finding the Fourth Proportional to 2,003.56, 2,763.24 and 1,683.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.56 : 2,763.24 = 1,683.28 : x
2. Step 2: Convert to fraction form
   2,003.56/2,763.24 = 1,683.28/x
3. Step 3: Cross multiply
   2,003.56x = 2,763.24 × 1,683.28
4. Step 4: Simplify right side
   2,003.56x = 4,651,306.63
5. Step 5: Solve for x
   x = 4,651,306.63/2,003.56
6. Step 6: Final answer
   x = 2,321.52