Finding the Fourth Proportional to 1,499.51, 2,069.33 and 909.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.51 : 2,069.33 = 909.92 : x
2. Step 2: Convert to fraction form
   1,499.51/2,069.33 = 909.92/x
3. Step 3: Cross multiply
   1,499.51x = 2,069.33 × 909.92
4. Step 4: Simplify right side
   1,499.51x = 1,882,909.86
5. Step 5: Solve for x
   x = 1,882,909.86/1,499.51
6. Step 6: Final answer
   x = 1,255.69