Finding the Fourth Proportional to 2,181.35, 3,008.72 and 1,435.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,181.35 : 3,008.72 = 1,435.07 : x
2. Step 2: Convert to fraction form
   2,181.35/3,008.72 = 1,435.07/x
3. Step 3: Cross multiply
   2,181.35x = 3,008.72 × 1,435.07
4. Step 4: Simplify right side
   2,181.35x = 4,317,712.35
5. Step 5: Solve for x
   x = 4,317,712.35/2,181.35
6. Step 6: Final answer
   x = 1,979.38