Finding the Fourth Proportional to 3,783.40, 5,681.25 and 3,754.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,783.40 : 5,681.25 = 3,754.69 : x
2. Step 2: Convert to fraction form
   3,783.40/5,681.25 = 3,754.69/x
3. Step 3: Cross multiply
   3,783.40x = 5,681.25 × 3,754.69
4. Step 4: Simplify right side
   3,783.40x = 21,331,332.56
5. Step 5: Solve for x
   x = 21,331,332.56/3,783.40
6. Step 6: Final answer
   x = 5,638.14