Finding the Fourth Proportional to 2,299.88, 3,173.52 and 1,305.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,299.88 : 3,173.52 = 1,305.20 : x
2. Step 2: Convert to fraction form
   2,299.88/3,173.52 = 1,305.20/x
3. Step 3: Cross multiply
   2,299.88x = 3,173.52 × 1,305.20
4. Step 4: Simplify right side
   2,299.88x = 4,142,078.30
5. Step 5: Solve for x
   x = 4,142,078.30/2,299.88
6. Step 6: Final answer
   x = 1,801.00