Finding the Fourth Proportional to 2,216.93, 3,059.52 and 1,272.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,216.93 : 3,059.52 = 1,272.88 : x
2. Step 2: Convert to fraction form
   2,216.93/3,059.52 = 1,272.88/x
3. Step 3: Cross multiply
   2,216.93x = 3,059.52 × 1,272.88
4. Step 4: Simplify right side
   2,216.93x = 3,894,386.52
5. Step 5: Solve for x
   x = 3,894,386.52/2,216.93
6. Step 6: Final answer
   x = 1,756.66