Finding the Fourth Proportional to 1,807.69, 2,495.07 and 1,022.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,807.69 : 2,495.07 = 1,022.19 : x
2. Step 2: Convert to fraction form
   1,807.69/2,495.07 = 1,022.19/x
3. Step 3: Cross multiply
   1,807.69x = 2,495.07 × 1,022.19
4. Step 4: Simplify right side
   1,807.69x = 2,550,431.77
5. Step 5: Solve for x
   x = 2,550,431.77/1,807.69
6. Step 6: Final answer
   x = 1,410.88