Finding the Fourth Proportional to 2,909.10, 4,362.78 and 1,265.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,909.10 : 4,362.78 = 1,265.25 : x
2. Step 2: Convert to fraction form
   2,909.10/4,362.78 = 1,265.25/x
3. Step 3: Cross multiply
   2,909.10x = 4,362.78 × 1,265.25
4. Step 4: Simplify right side
   2,909.10x = 5,520,007.40
5. Step 5: Solve for x
   x = 5,520,007.40/2,909.10
6. Step 6: Final answer
   x = 1,897.50