Finding the Fourth Proportional to 2,221.27, 3,065.50 and 1,277.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,221.27 : 3,065.50 = 1,277.37 : x
2. Step 2: Convert to fraction form
   2,221.27/3,065.50 = 1,277.37/x
3. Step 3: Cross multiply
   2,221.27x = 3,065.50 × 1,277.37
4. Step 4: Simplify right side
   2,221.27x = 3,915,777.74
5. Step 5: Solve for x
   x = 3,915,777.74/2,221.27
6. Step 6: Final answer
   x = 1,762.86