Finding the Fourth Proportional to 2,803.78, 4,204.72 and 1,416.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,803.78 : 4,204.72 = 1,416.23 : x
2. Step 2: Convert to fraction form
   2,803.78/4,204.72 = 1,416.23/x
3. Step 3: Cross multiply
   2,803.78x = 4,204.72 × 1,416.23
4. Step 4: Simplify right side
   2,803.78x = 5,954,850.61
5. Step 5: Solve for x
   x = 5,954,850.61/2,803.78
6. Step 6: Final answer
   x = 2,123.87