Finding the Fourth Proportional to 2,181.33, 3,008.16 and 1,434.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,181.33 : 3,008.16 = 1,434.96 : x
2. Step 2: Convert to fraction form
   2,181.33/3,008.16 = 1,434.96/x
3. Step 3: Cross multiply
   2,181.33x = 3,008.16 × 1,434.96
4. Step 4: Simplify right side
   2,181.33x = 4,316,589.27
5. Step 5: Solve for x
   x = 4,316,589.27/2,181.33
6. Step 6: Final answer
   x = 1,978.88