Finding the Fourth Proportional to 2,686.50, 3,707.28 and 1,491.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,686.50 : 3,707.28 = 1,491.45 : x
2. Step 2: Convert to fraction form
   2,686.50/3,707.28 = 1,491.45/x
3. Step 3: Cross multiply
   2,686.50x = 3,707.28 × 1,491.45
4. Step 4: Simplify right side
   2,686.50x = 5,529,222.76
5. Step 5: Solve for x
   x = 5,529,222.76/2,686.50
6. Step 6: Final answer
   x = 2,058.15