Finding the Fourth Proportional to 1,679.89, 2,513.50 and 1,509.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,679.89 : 2,513.50 = 1,509.37 : x
2. Step 2: Convert to fraction form
   1,679.89/2,513.50 = 1,509.37/x
3. Step 3: Cross multiply
   1,679.89x = 2,513.50 × 1,509.37
4. Step 4: Simplify right side
   1,679.89x = 3,793,801.50
5. Step 5: Solve for x
   x = 3,793,801.50/1,679.89
6. Step 6: Final answer
   x = 2,258.36