Finding the Fourth Proportional to 1,811.94, 2,500.31 and 1,025.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,811.94 : 2,500.31 = 1,025.99 : x
2. Step 2: Convert to fraction form
   1,811.94/2,500.31 = 1,025.99/x
3. Step 3: Cross multiply
   1,811.94x = 2,500.31 × 1,025.99
4. Step 4: Simplify right side
   1,811.94x = 2,565,280.56
5. Step 5: Solve for x
   x = 2,565,280.56/1,811.94
6. Step 6: Final answer
   x = 1,415.76