Finding the Fourth Proportional to 2,523.89, 3,780.36 and 1,222.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,523.89 : 3,780.36 = 1,222.63 : x
2. Step 2: Convert to fraction form
   2,523.89/3,780.36 = 1,222.63/x
3. Step 3: Cross multiply
   2,523.89x = 3,780.36 × 1,222.63
4. Step 4: Simplify right side
   2,523.89x = 4,621,981.55
5. Step 5: Solve for x
   x = 4,621,981.55/2,523.89
6. Step 6: Final answer
   x = 1,831.29