Finding the Fourth Proportional to 3,897.34, 5,376.32 and 2,570.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,897.34 : 5,376.32 = 2,570.56 : x
2. Step 2: Convert to fraction form
   3,897.34/5,376.32 = 2,570.56/x
3. Step 3: Cross multiply
   3,897.34x = 5,376.32 × 2,570.56
4. Step 4: Simplify right side
   3,897.34x = 13,820,153.14
5. Step 5: Solve for x
   x = 13,820,153.14/3,897.34
6. Step 6: Final answer
   x = 3,546.05