Finding the Fourth Proportional to 1,808.47, 2,495.67 and 1,022.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,808.47 : 2,495.67 = 1,022.50 : x
2. Step 2: Convert to fraction form
   1,808.47/2,495.67 = 1,022.50/x
3. Step 3: Cross multiply
   1,808.47x = 2,495.67 × 1,022.50
4. Step 4: Simplify right side
   1,808.47x = 2,551,822.58
5. Step 5: Solve for x
   x = 2,551,822.58/1,808.47
6. Step 6: Final answer
   x = 1,411.04