Finding the Fourth Proportional to 3,915.06, 5,870.52 and 1,449.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,915.06 : 5,870.52 = 1,449.42 : x
2. Step 2: Convert to fraction form
   3,915.06/5,870.52 = 1,449.42/x
3. Step 3: Cross multiply
   3,915.06x = 5,870.52 × 1,449.42
4. Step 4: Simplify right side
   3,915.06x = 8,508,849.10
5. Step 5: Solve for x
   x = 8,508,849.10/3,915.06
6. Step 6: Final answer
   x = 2,173.36