Finding the Fourth Proportional to 1,807.98, 2,495.46 and 1,022.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,807.98 : 2,495.46 = 1,022.49 : x
2. Step 2: Convert to fraction form
   1,807.98/2,495.46 = 1,022.49/x
3. Step 3: Cross multiply
   1,807.98x = 2,495.46 × 1,022.49
4. Step 4: Simplify right side
   1,807.98x = 2,551,582.90
5. Step 5: Solve for x
   x = 2,551,582.90/1,807.98
6. Step 6: Final answer
   x = 1,411.29