Finding the Fourth Proportional to 1,810.98, 2,499.60 and 1,025.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,810.98 : 2,499.60 = 1,025.49 : x
2. Step 2: Convert to fraction form
   1,810.98/2,499.60 = 1,025.49/x
3. Step 3: Cross multiply
   1,810.98x = 2,499.60 × 1,025.49
4. Step 4: Simplify right side
   1,810.98x = 2,563,314.80
5. Step 5: Solve for x
   x = 2,563,314.80/1,810.98
6. Step 6: Final answer
   x = 1,415.43