Finding the Fourth Proportional to 2,156.86, 2,976.86 and 1,411.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,156.86 : 2,976.86 = 1,411.48 : x
2. Step 2: Convert to fraction form
   2,156.86/2,976.86 = 1,411.48/x
3. Step 3: Cross multiply
   2,156.86x = 2,976.86 × 1,411.48
4. Step 4: Simplify right side
   2,156.86x = 4,201,756.41
5. Step 5: Solve for x
   x = 4,201,756.41/2,156.86
6. Step 6: Final answer
   x = 1,948.09