Finding the Fourth Proportional to 2,003.52, 2,763.27 and 1,217.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.52 : 2,763.27 = 1,217.55 : x
2. Step 2: Convert to fraction form
   2,003.52/2,763.27 = 1,217.55/x
3. Step 3: Cross multiply
   2,003.52x = 2,763.27 × 1,217.55
4. Step 4: Simplify right side
   2,003.52x = 3,364,419.39
5. Step 5: Solve for x
   x = 3,364,419.39/2,003.52
6. Step 6: Final answer
   x = 1,679.25