Finding the Fourth Proportional to 3,897.12, 5,795.61 and 3,774.09

Step by Step Solution

1. Step 1: Write the proportion equation
   3,897.12 : 5,795.61 = 3,774.09 : x
2. Step 2: Convert to fraction form
   3,897.12/5,795.61 = 3,774.09/x
3. Step 3: Cross multiply
   3,897.12x = 5,795.61 × 3,774.09
4. Step 4: Simplify right side
   3,897.12x = 21,873,153.74
5. Step 5: Solve for x
   x = 21,873,153.74/3,897.12
6. Step 6: Final answer
   x = 5,612.65