Finding the Fourth Proportional to 3,870.90, 5,798.07 and 3,601.17

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870.90 : 5,798.07 = 3,601.17 : x
2. Step 2: Convert to fraction form
   3,870.90/5,798.07 = 3,601.17/x
3. Step 3: Cross multiply
   3,870.90x = 5,798.07 × 3,601.17
4. Step 4: Simplify right side
   3,870.90x = 20,879,835.74
5. Step 5: Solve for x
   x = 20,879,835.74/3,870.90
6. Step 6: Final answer
   x = 5,394.05