Finding the Fourth Proportional to 3,753.60, 5,625.72 and 1,805.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,753.60 : 5,625.72 = 1,805.28 : x
2. Step 2: Convert to fraction form
   3,753.60/5,625.72 = 1,805.28/x
3. Step 3: Cross multiply
   3,753.60x = 5,625.72 × 1,805.28
4. Step 4: Simplify right side
   3,753.60x = 10,155,999.80
5. Step 5: Solve for x
   x = 10,155,999.80/3,753.60
6. Step 6: Final answer
   x = 2,705.67