Finding the Fourth Proportional to 1,377.25, 1,900.61 and 756.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,377.25 : 1,900.61 = 756.25 : x
2. Step 2: Convert to fraction form
   1,377.25/1,900.61 = 756.25/x
3. Step 3: Cross multiply
   1,377.25x = 1,900.61 × 756.25
4. Step 4: Simplify right side
   1,377.25x = 1,437,336.31
5. Step 5: Solve for x
   x = 1,437,336.31/1,377.25
6. Step 6: Final answer
   x = 1,043.63