Finding the Fourth Proportional to 1,811.07, 2,499.28 and 1,025.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,811.07 : 2,499.28 = 1,025.27 : x
2. Step 2: Convert to fraction form
   1,811.07/2,499.28 = 1,025.27/x
3. Step 3: Cross multiply
   1,811.07x = 2,499.28 × 1,025.27
4. Step 4: Simplify right side
   1,811.07x = 2,562,436.81
5. Step 5: Solve for x
   x = 2,562,436.81/1,811.07
6. Step 6: Final answer
   x = 1,414.87