Finding the Fourth Proportional to 2,156.69, 2,977.44 and 1,411.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,156.69 : 2,977.44 = 1,411.41 : x
2. Step 2: Convert to fraction form
   2,156.69/2,977.44 = 1,411.41/x
3. Step 3: Cross multiply
   2,156.69x = 2,977.44 × 1,411.41
4. Step 4: Simplify right side
   2,156.69x = 4,202,388.59
5. Step 5: Solve for x
   x = 4,202,388.59/2,156.69
6. Step 6: Final answer
   x = 1,948.54