Finding the Fourth Proportional to 7,870.06, 11,805.59 and 2,604.86

Step by Step Solution

1. Step 1: Write the proportion equation
   7,870.06 : 11,805.59 = 2,604.86 : x
2. Step 2: Convert to fraction form
   7,870.06/11,805.59 = 2,604.86/x
3. Step 3: Cross multiply
   7,870.06x = 11,805.59 × 2,604.86
4. Step 4: Simplify right side
   7,870.06x = 30,751,850.14
5. Step 5: Solve for x
   x = 30,751,850.14/7,870.06
6. Step 6: Final answer
   x = 3,907.45