Finding the Fourth Proportional to 2,212.80, 3,051.20 and 1,740.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,212.80 : 3,051.20 = 1,740.72 : x
2. Step 2: Convert to fraction form
   2,212.80/3,051.20 = 1,740.72/x
3. Step 3: Cross multiply
   2,212.80x = 3,051.20 × 1,740.72
4. Step 4: Simplify right side
   2,212.80x = 5,311,284.86
5. Step 5: Solve for x
   x = 5,311,284.86/2,212.80
6. Step 6: Final answer
   x = 2,400.26