Finding the Fourth Proportional to 2,553.33, 3,829.52 and 909.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,553.33 : 3,829.52 = 909.87 : x
2. Step 2: Convert to fraction form
   2,553.33/3,829.52 = 909.87/x
3. Step 3: Cross multiply
   2,553.33x = 3,829.52 × 909.87
4. Step 4: Simplify right side
   2,553.33x = 3,484,360.81
5. Step 5: Solve for x
   x = 3,484,360.81/2,553.33
6. Step 6: Final answer
   x = 1,364.63