Finding the Fourth Proportional to 3,845.75, 5,307.82 and 3,670.45

Step by Step Solution

1. Step 1: Write the proportion equation
   3,845.75 : 5,307.82 = 3,670.45 : x
2. Step 2: Convert to fraction form
   3,845.75/5,307.82 = 3,670.45/x
3. Step 3: Cross multiply
   3,845.75x = 5,307.82 × 3,670.45
4. Step 4: Simplify right side
   3,845.75x = 19,482,087.92
5. Step 5: Solve for x
   x = 19,482,087.92/3,845.75
6. Step 6: Final answer
   x = 5,065.87