Finding the Fourth Proportional to 2,040.10, 2,814.42 and 1,253.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,040.10 : 2,814.42 = 1,253.86 : x
2. Step 2: Convert to fraction form
   2,040.10/2,814.42 = 1,253.86/x
3. Step 3: Cross multiply
   2,040.10x = 2,814.42 × 1,253.86
4. Step 4: Simplify right side
   2,040.10x = 3,528,888.66
5. Step 5: Solve for x
   x = 3,528,888.66/2,040.10
6. Step 6: Final answer
   x = 1,729.76