Finding the Fourth Proportional to 2,758.34, 4,120.47 and 2,211.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,758.34 : 4,120.47 = 2,211.59 : x
2. Step 2: Convert to fraction form
   2,758.34/4,120.47 = 2,211.59/x
3. Step 3: Cross multiply
   2,758.34x = 4,120.47 × 2,211.59
4. Step 4: Simplify right side
   2,758.34x = 9,112,800.55
5. Step 5: Solve for x
   x = 9,112,800.55/2,758.34
6. Step 6: Final answer
   x = 3,303.72