Finding the Fourth Proportional to 3,931.83, 5,426.15 and 2,253.44

Step by Step Solution

1. Step 1: Write the proportion equation
   3,931.83 : 5,426.15 = 2,253.44 : x
2. Step 2: Convert to fraction form
   3,931.83/5,426.15 = 2,253.44/x
3. Step 3: Cross multiply
   3,931.83x = 5,426.15 × 2,253.44
4. Step 4: Simplify right side
   3,931.83x = 12,227,503.46
5. Step 5: Solve for x
   x = 12,227,503.46/3,931.83
6. Step 6: Final answer
   x = 3,109.88