Finding the Fourth Proportional to 2,472.75, 3,704.49 and 1,238.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,472.75 : 3,704.49 = 1,238.72 : x
2. Step 2: Convert to fraction form
   2,472.75/3,704.49 = 1,238.72/x
3. Step 3: Cross multiply
   2,472.75x = 3,704.49 × 1,238.72
4. Step 4: Simplify right side
   2,472.75x = 4,588,807.33
5. Step 5: Solve for x
   x = 4,588,807.33/2,472.75
6. Step 6: Final answer
   x = 1,855.75