Finding the Fourth Proportional to 7,870.34, 11,802.71 and 2,604.38

Step by Step Solution

1. Step 1: Write the proportion equation
   7,870.34 : 11,802.71 = 2,604.38 : x
2. Step 2: Convert to fraction form
   7,870.34/11,802.71 = 2,604.38/x
3. Step 3: Cross multiply
   7,870.34x = 11,802.71 × 2,604.38
4. Step 4: Simplify right side
   7,870.34x = 30,738,689.37
5. Step 5: Solve for x
   x = 30,738,689.37/7,870.34
6. Step 6: Final answer
   x = 3,905.64