Finding the Fourth Proportional to 2,178.71, 3,005.43 and 1,881.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,178.71 : 3,005.43 = 1,881.18 : x
2. Step 2: Convert to fraction form
   2,178.71/3,005.43 = 1,881.18/x
3. Step 3: Cross multiply
   2,178.71x = 3,005.43 × 1,881.18
4. Step 4: Simplify right side
   2,178.71x = 5,653,754.81
5. Step 5: Solve for x
   x = 5,653,754.81/2,178.71
6. Step 6: Final answer
   x = 2,595.01