Finding the Fourth Proportional to 2,271.23, 3,406.86 and 627.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,271.23 : 3,406.86 = 627.86 : x
2. Step 2: Convert to fraction form
   2,271.23/3,406.86 = 627.86/x
3. Step 3: Cross multiply
   2,271.23x = 3,406.86 × 627.86
4. Step 4: Simplify right side
   2,271.23x = 2,139,014.09
5. Step 5: Solve for x
   x = 2,139,014.09/2,271.23
6. Step 6: Final answer
   x = 941.79