Finding the Fourth Proportional to 1,815.69, 2,506.22 and 1,030.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,815.69 : 2,506.22 = 1,030.26 : x
2. Step 2: Convert to fraction form
   1,815.69/2,506.22 = 1,030.26/x
3. Step 3: Cross multiply
   1,815.69x = 2,506.22 × 1,030.26
4. Step 4: Simplify right side
   1,815.69x = 2,582,058.22
5. Step 5: Solve for x
   x = 2,582,058.22/1,815.69
6. Step 6: Final answer
   x = 1,422.08