Finding the Fourth Proportional to 2,214.43, 3,320.25 and 1,173.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,214.43 : 3,320.25 = 1,173.78 : x
2. Step 2: Convert to fraction form
   2,214.43/3,320.25 = 1,173.78/x
3. Step 3: Cross multiply
   2,214.43x = 3,320.25 × 1,173.78
4. Step 4: Simplify right side
   2,214.43x = 3,897,243.05
5. Step 5: Solve for x
   x = 3,897,243.05/2,214.43
6. Step 6: Final answer
   x = 1,759.93