Finding the Fourth Proportional to 1,811.35, 2,499.60 and 1,025.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,811.35 : 2,499.60 = 1,025.35 : x
2. Step 2: Convert to fraction form
   1,811.35/2,499.60 = 1,025.35/x
3. Step 3: Cross multiply
   1,811.35x = 2,499.60 × 1,025.35
4. Step 4: Simplify right side
   1,811.35x = 2,562,964.86
5. Step 5: Solve for x
   x = 2,562,964.86/1,811.35
6. Step 6: Final answer
   x = 1,414.95