Finding the Fourth Proportional to 3,780.72, 5,671.06 and 1,007.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,780.72 : 5,671.06 = 1,007.38 : x
2. Step 2: Convert to fraction form
   3,780.72/5,671.06 = 1,007.38/x
3. Step 3: Cross multiply
   3,780.72x = 5,671.06 × 1,007.38
4. Step 4: Simplify right side
   3,780.72x = 5,712,912.42
5. Step 5: Solve for x
   x = 5,712,912.42/3,780.72
6. Step 6: Final answer
   x = 1,511.06