Finding the Fourth Proportional to 2,553.72, 3,830.13 and 704.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,553.72 : 3,830.13 = 704.39 : x
2. Step 2: Convert to fraction form
   2,553.72/3,830.13 = 704.39/x
3. Step 3: Cross multiply
   2,553.72x = 3,830.13 × 704.39
4. Step 4: Simplify right side
   2,553.72x = 2,697,886.12
5. Step 5: Solve for x
   x = 2,697,886.12/2,553.72
6. Step 6: Final answer
   x = 1,056.45