Finding the Fourth Proportional to 1,811.25, 2,499.65 and 1,025.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,811.25 : 2,499.65 = 1,025.30 : x
2. Step 2: Convert to fraction form
   1,811.25/2,499.65 = 1,025.30/x
3. Step 3: Cross multiply
   1,811.25x = 2,499.65 × 1,025.30
4. Step 4: Simplify right side
   1,811.25x = 2,562,891.15
5. Step 5: Solve for x
   x = 2,562,891.15/1,811.25
6. Step 6: Final answer
   x = 1,414.98