Finding the Fourth Proportional to 2,680.86, 3,699.70 and 1,501.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,680.86 : 3,699.70 = 1,501.90 : x
2. Step 2: Convert to fraction form
   2,680.86/3,699.70 = 1,501.90/x
3. Step 3: Cross multiply
   2,680.86x = 3,699.70 × 1,501.90
4. Step 4: Simplify right side
   2,680.86x = 5,556,579.43
5. Step 5: Solve for x
   x = 5,556,579.43/2,680.86
6. Step 6: Final answer
   x = 2,072.69