Finding the Fourth Proportional to 2,181.55, 3,008.55 and 1,435.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,181.55 : 3,008.55 = 1,435.24 : x
2. Step 2: Convert to fraction form
   2,181.55/3,008.55 = 1,435.24/x
3. Step 3: Cross multiply
   2,181.55x = 3,008.55 × 1,435.24
4. Step 4: Simplify right side
   2,181.55x = 4,317,991.30
5. Step 5: Solve for x
   x = 4,317,991.30/2,181.55
6. Step 6: Final answer
   x = 1,979.32