Finding the Fourth Proportional to 3,890.86, 5,808.02 and 3,601.75

Step by Step Solution

1. Step 1: Write the proportion equation
   3,890.86 : 5,808.02 = 3,601.75 : x
2. Step 2: Convert to fraction form
   3,890.86/5,808.02 = 3,601.75/x
3. Step 3: Cross multiply
   3,890.86x = 5,808.02 × 3,601.75
4. Step 4: Simplify right side
   3,890.86x = 20,919,036.04
5. Step 5: Solve for x
   x = 20,919,036.04/3,890.86
6. Step 6: Final answer
   x = 5,376.46