Finding the Fourth Proportional to 2,680.72, 3,699.62 and 1,501.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,680.72 : 3,699.62 = 1,501.90 : x
2. Step 2: Convert to fraction form
   2,680.72/3,699.62 = 1,501.90/x
3. Step 3: Cross multiply
   2,680.72x = 3,699.62 × 1,501.90
4. Step 4: Simplify right side
   2,680.72x = 5,556,459.28
5. Step 5: Solve for x
   x = 5,556,459.28/2,680.72
6. Step 6: Final answer
   x = 2,072.75