Finding the Fourth Proportional to 2,165.60, 3,241.12 and 1,801.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,165.60 : 3,241.12 = 1,801.12 : x
2. Step 2: Convert to fraction form
   2,165.60/3,241.12 = 1,801.12/x
3. Step 3: Cross multiply
   2,165.60x = 3,241.12 × 1,801.12
4. Step 4: Simplify right side
   2,165.60x = 5,837,646.05
5. Step 5: Solve for x
   x = 5,837,646.05/2,165.60
6. Step 6: Final answer
   x = 2,695.63