Finding the Fourth Proportional to 2,214.12, 3,055.37 and 1,269.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,214.12 : 3,055.37 = 1,269.86 : x
2. Step 2: Convert to fraction form
   2,214.12/3,055.37 = 1,269.86/x
3. Step 3: Cross multiply
   2,214.12x = 3,055.37 × 1,269.86
4. Step 4: Simplify right side
   2,214.12x = 3,879,894.85
5. Step 5: Solve for x
   x = 3,879,894.85/2,214.12
6. Step 6: Final answer
   x = 1,752.34