Finding the Fourth Proportional to 2,265.10, 3,128.43 and 1,805.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,265.10 : 3,128.43 = 1,805.02 : x
2. Step 2: Convert to fraction form
   2,265.10/3,128.43 = 1,805.02/x
3. Step 3: Cross multiply
   2,265.10x = 3,128.43 × 1,805.02
4. Step 4: Simplify right side
   2,265.10x = 5,646,878.72
5. Step 5: Solve for x
   x = 5,646,878.72/2,265.10
6. Step 6: Final answer
   x = 2,492.99