Finding the Fourth Proportional to 3,894.52, 5,373.61 and 2,477.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,894.52 : 5,373.61 = 2,477.69 : x
2. Step 2: Convert to fraction form
   3,894.52/5,373.61 = 2,477.69/x
3. Step 3: Cross multiply
   3,894.52x = 5,373.61 × 2,477.69
4. Step 4: Simplify right side
   3,894.52x = 13,314,139.76
5. Step 5: Solve for x
   x = 13,314,139.76/3,894.52
6. Step 6: Final answer
   x = 3,418.69