Finding the Fourth Proportional to 2,686.84, 3,707.76 and 1,507.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,686.84 : 3,707.76 = 1,507.96 : x
2. Step 2: Convert to fraction form
   2,686.84/3,707.76 = 1,507.96/x
3. Step 3: Cross multiply
   2,686.84x = 3,707.76 × 1,507.96
4. Step 4: Simplify right side
   2,686.84x = 5,591,153.77
5. Step 5: Solve for x
   x = 5,591,153.77/2,686.84
6. Step 6: Final answer
   x = 2,080.94