Finding the Fourth Proportional to 1,809.89, 2,496.64 and 1,250.65

Step by Step Solution

1. Step 1: Write the proportion equation
   1,809.89 : 2,496.64 = 1,250.65 : x
2. Step 2: Convert to fraction form
   1,809.89/2,496.64 = 1,250.65/x
3. Step 3: Cross multiply
   1,809.89x = 2,496.64 × 1,250.65
4. Step 4: Simplify right side
   1,809.89x = 3,122,422.82
5. Step 5: Solve for x
   x = 3,122,422.82/1,809.89
6. Step 6: Final answer
   x = 1,725.20