Finding the Fourth Proportional to 2,698.89, 3,725.28 and 1,580.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,698.89 : 3,725.28 = 1,580.07 : x
2. Step 2: Convert to fraction form
   2,698.89/3,725.28 = 1,580.07/x
3. Step 3: Cross multiply
   2,698.89x = 3,725.28 × 1,580.07
4. Step 4: Simplify right side
   2,698.89x = 5,886,203.17
5. Step 5: Solve for x
   x = 5,886,203.17/2,698.89
6. Step 6: Final answer
   x = 2,180.97