Finding the Fourth Proportional to 3,100.91, 4,651.52 and 909.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,100.91 : 4,651.52 = 909.81 : x
2. Step 2: Convert to fraction form
   3,100.91/4,651.52 = 909.81/x
3. Step 3: Cross multiply
   3,100.91x = 4,651.52 × 909.81
4. Step 4: Simplify right side
   3,100.91x = 4,231,994.86
5. Step 5: Solve for x
   x = 4,231,994.86/3,100.91
6. Step 6: Final answer
   x = 1,364.76