Finding the Fourth Proportional to 2,154.78, 3,233.78 and 1,459.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,154.78 : 3,233.78 = 1,459.80 : x
2. Step 2: Convert to fraction form
   2,154.78/3,233.78 = 1,459.80/x
3. Step 3: Cross multiply
   2,154.78x = 3,233.78 × 1,459.80
4. Step 4: Simplify right side
   2,154.78x = 4,720,672.04
5. Step 5: Solve for x
   x = 4,720,672.04/2,154.78
6. Step 6: Final answer
   x = 2,190.79