Finding the Fourth Proportional to 2,221.68, 3,329.16 and 1,757.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,221.68 : 3,329.16 = 1,757.52 : x
2. Step 2: Convert to fraction form
   2,221.68/3,329.16 = 1,757.52/x
3. Step 3: Cross multiply
   2,221.68x = 3,329.16 × 1,757.52
4. Step 4: Simplify right side
   2,221.68x = 5,851,065.28
5. Step 5: Solve for x
   x = 5,851,065.28/2,221.68
6. Step 6: Final answer
   x = 2,633.62