Finding the Fourth Proportional to 4,920.27, 7,381.49 and 1,457.79

Step by Step Solution

1. Step 1: Write the proportion equation
   4,920.27 : 7,381.49 = 1,457.79 : x
2. Step 2: Convert to fraction form
   4,920.27/7,381.49 = 1,457.79/x
3. Step 3: Cross multiply
   4,920.27x = 7,381.49 × 1,457.79
4. Step 4: Simplify right side
   4,920.27x = 10,760,662.31
5. Step 5: Solve for x
   x = 10,760,662.31/4,920.27
6. Step 6: Final answer
   x = 2,187.01