Finding the Fourth Proportional to 2,553.15, 3,830.94 and 1,457.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,553.15 : 3,830.94 = 1,457.90 : x
2. Step 2: Convert to fraction form
   2,553.15/3,830.94 = 1,457.90/x
3. Step 3: Cross multiply
   2,553.15x = 3,830.94 × 1,457.90
4. Step 4: Simplify right side
   2,553.15x = 5,585,108.27
5. Step 5: Solve for x
   x = 5,585,108.27/2,553.15
6. Step 6: Final answer
   x = 2,187.54