Finding the Fourth Proportional to 3,100.84, 4,651.20 and 909.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,100.84 : 4,651.20 = 909.52 : x
2. Step 2: Convert to fraction form
   3,100.84/4,651.20 = 909.52/x
3. Step 3: Cross multiply
   3,100.84x = 4,651.20 × 909.52
4. Step 4: Simplify right side
   3,100.84x = 4,230,373.33
5. Step 5: Solve for x
   x = 4,230,373.33/3,100.84
6. Step 6: Final answer
   x = 1,364.27