Finding the Fourth Proportional to 3,784.52, 5,640.11 and 3,587.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,784.52 : 5,640.11 = 3,587.69 : x
2. Step 2: Convert to fraction form
   3,784.52/5,640.11 = 3,587.69/x
3. Step 3: Cross multiply
   3,784.52x = 5,640.11 × 3,587.69
4. Step 4: Simplify right side
   3,784.52x = 20,234,966.25
5. Step 5: Solve for x
   x = 20,234,966.25/3,784.52
6. Step 6: Final answer
   x = 5,346.77