Finding the Fourth Proportional to 1,811.89, 2,500.23 and 1,025.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,811.89 : 2,500.23 = 1,025.79 : x
2. Step 2: Convert to fraction form
   1,811.89/2,500.23 = 1,025.79/x
3. Step 3: Cross multiply
   1,811.89x = 2,500.23 × 1,025.79
4. Step 4: Simplify right side
   1,811.89x = 2,564,710.93
5. Step 5: Solve for x
   x = 2,564,710.93/1,811.89
6. Step 6: Final answer
   x = 1,415.49