Finding the Fourth Proportional to 2,216.99, 3,059.16 and 1,272.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,216.99 : 3,059.16 = 1,272.83 : x
2. Step 2: Convert to fraction form
   2,216.99/3,059.16 = 1,272.83/x
3. Step 3: Cross multiply
   2,216.99x = 3,059.16 × 1,272.83
4. Step 4: Simplify right side
   2,216.99x = 3,893,777.71
5. Step 5: Solve for x
   x = 3,893,777.71/2,216.99
6. Step 6: Final answer
   x = 1,756.33