Finding the Fourth Proportional to 3,915.16, 5,870.12 and 2,064.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,915.16 : 5,870.12 = 2,064.32 : x
2. Step 2: Convert to fraction form
   3,915.16/5,870.12 = 2,064.32/x
3. Step 3: Cross multiply
   3,915.16x = 5,870.12 × 2,064.32
4. Step 4: Simplify right side
   3,915.16x = 12,117,806.12
5. Step 5: Solve for x
   x = 12,117,806.12/3,915.16
6. Step 6: Final answer
   x = 3,095.10