Finding the Fourth Proportional to 3,704.29, 5,557.60 and 2,315.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,704.29 : 5,557.60 = 2,315.72 : x
2. Step 2: Convert to fraction form
   3,704.29/5,557.60 = 2,315.72/x
3. Step 3: Cross multiply
   3,704.29x = 5,557.60 × 2,315.72
4. Step 4: Simplify right side
   3,704.29x = 12,869,845.47
5. Step 5: Solve for x
   x = 12,869,845.47/3,704.29
6. Step 6: Final answer
   x = 3,474.31