Finding the Fourth Proportional to 2,708.96, 3,738.72 and 1,530.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,708.96 : 3,738.72 = 1,530.40 : x
2. Step 2: Convert to fraction form
   2,708.96/3,738.72 = 1,530.40/x
3. Step 3: Cross multiply
   2,708.96x = 3,738.72 × 1,530.40
4. Step 4: Simplify right side
   2,708.96x = 5,721,737.09
5. Step 5: Solve for x
   x = 5,721,737.09/2,708.96
6. Step 6: Final answer
   x = 2,112.15