Finding the Fourth Proportional to 2,180.72, 3,011.52 and 1,864.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,180.72 : 3,011.52 = 1,864.14 : x
2. Step 2: Convert to fraction form
   2,180.72/3,011.52 = 1,864.14/x
3. Step 3: Cross multiply
   2,180.72x = 3,011.52 × 1,864.14
4. Step 4: Simplify right side
   2,180.72x = 5,613,901.38
5. Step 5: Solve for x
   x = 5,613,901.38/2,180.72
6. Step 6: Final answer
   x = 2,574.34