Finding the Fourth Proportional to 2,553.52, 3,830.38 and 910.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,553.52 : 3,830.38 = 910.20 : x
2. Step 2: Convert to fraction form
   2,553.52/3,830.38 = 910.20/x
3. Step 3: Cross multiply
   2,553.52x = 3,830.38 × 910.20
4. Step 4: Simplify right side
   2,553.52x = 3,486,411.88
5. Step 5: Solve for x
   x = 3,486,411.88/2,553.52
6. Step 6: Final answer
   x = 1,365.34