Finding the Fourth Proportional to 2,116.52, 2,918.99 and 1,722.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116.52 : 2,918.99 = 1,722.86 : x
2. Step 2: Convert to fraction form
   2,116.52/2,918.99 = 1,722.86/x
3. Step 3: Cross multiply
   2,116.52x = 2,918.99 × 1,722.86
4. Step 4: Simplify right side
   2,116.52x = 5,028,987.90
5. Step 5: Solve for x
   x = 5,028,987.90/2,116.52
6. Step 6: Final answer
   x = 2,376.07