Finding the Fourth Proportional to 2,160.05, 2,979.16 and 1,451.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,160.05 : 2,979.16 = 1,451.81 : x
2. Step 2: Convert to fraction form
   2,160.05/2,979.16 = 1,451.81/x
3. Step 3: Cross multiply
   2,160.05x = 2,979.16 × 1,451.81
4. Step 4: Simplify right side
   2,160.05x = 4,325,174.28
5. Step 5: Solve for x
   x = 4,325,174.28/2,160.05
6. Step 6: Final answer
   x = 2,002.35