Finding the Fourth Proportional to 3,100.52, 4,650.55 and 909.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,100.52 : 4,650.55 = 909.06 : x
2. Step 2: Convert to fraction form
   3,100.52/4,650.55 = 909.06/x
3. Step 3: Cross multiply
   3,100.52x = 4,650.55 × 909.06
4. Step 4: Simplify right side
   3,100.52x = 4,227,628.98
5. Step 5: Solve for x
   x = 4,227,628.98/3,100.52
6. Step 6: Final answer
   x = 1,363.52