Finding the Fourth Proportional to 2,679.72, 3,698.24 and 1,500.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,679.72 : 3,698.24 = 1,500.90 : x
2. Step 2: Convert to fraction form
   2,679.72/3,698.24 = 1,500.90/x
3. Step 3: Cross multiply
   2,679.72x = 3,698.24 × 1,500.90
4. Step 4: Simplify right side
   2,679.72x = 5,550,680.91
5. Step 5: Solve for x
   x = 5,550,680.91/2,679.72
6. Step 6: Final answer
   x = 2,071.37