Finding the Fourth Proportional to 3,411.72, 4,708.80 and 2,153.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,411.72 : 4,708.80 = 2,153.52 : x
2. Step 2: Convert to fraction form
   3,411.72/4,708.80 = 2,153.52/x
3. Step 3: Cross multiply
   3,411.72x = 4,708.80 × 2,153.52
4. Step 4: Simplify right side
   3,411.72x = 10,140,494.98
5. Step 5: Solve for x
   x = 10,140,494.98/3,411.72
6. Step 6: Final answer
   x = 2,972.25