Finding the Fourth Proportional to 2,253.89, 3,381.89 and 1,021.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,253.89 : 3,381.89 = 1,021.68 : x
2. Step 2: Convert to fraction form
   2,253.89/3,381.89 = 1,021.68/x
3. Step 3: Cross multiply
   2,253.89x = 3,381.89 × 1,021.68
4. Step 4: Simplify right side
   2,253.89x = 3,455,204.27
5. Step 5: Solve for x
   x = 3,455,204.27/2,253.89
6. Step 6: Final answer
   x = 1,532.99