Finding the Fourth Proportional to 2,116.86, 3,173.46 and 1,019.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116.86 : 3,173.46 = 1,019.71 : x
2. Step 2: Convert to fraction form
   2,116.86/3,173.46 = 1,019.71/x
3. Step 3: Cross multiply
   2,116.86x = 3,173.46 × 1,019.71
4. Step 4: Simplify right side
   2,116.86x = 3,236,008.90
5. Step 5: Solve for x
   x = 3,236,008.90/2,116.86
6. Step 6: Final answer
   x = 1,528.68