Finding the Fourth Proportional to 2,003.24, 2,764.32 and 1,217.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.24 : 2,764.32 = 1,217.18 : x
2. Step 2: Convert to fraction form
   2,003.24/2,764.32 = 1,217.18/x
3. Step 3: Cross multiply
   2,003.24x = 2,764.32 × 1,217.18
4. Step 4: Simplify right side
   2,003.24x = 3,364,675.02
5. Step 5: Solve for x
   x = 3,364,675.02/2,003.24
6. Step 6: Final answer
   x = 1,679.62