Finding the Fourth Proportional to 3,830.77, 5,282.55 and 3,607.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,830.77 : 5,282.55 = 3,607.53 : x
2. Step 2: Convert to fraction form
   3,830.77/5,282.55 = 3,607.53/x
3. Step 3: Cross multiply
   3,830.77x = 5,282.55 × 3,607.53
4. Step 4: Simplify right side
   3,830.77x = 19,056,939.56
5. Step 5: Solve for x
   x = 19,056,939.56/3,830.77
6. Step 6: Final answer
   x = 4,974.71