Finding the Fourth Proportional to 1,811.34, 2,499.60 and 1,025.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,811.34 : 2,499.60 = 1,025.46 : x
2. Step 2: Convert to fraction form
   1,811.34/2,499.60 = 1,025.46/x
3. Step 3: Cross multiply
   1,811.34x = 2,499.60 × 1,025.46
4. Step 4: Simplify right side
   1,811.34x = 2,563,239.82
5. Step 5: Solve for x
   x = 2,563,239.82/1,811.34
6. Step 6: Final answer
   x = 1,415.11