Finding the Fourth Proportional to 2,870.25, 4,309.32 and 1,484.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,870.25 : 4,309.32 = 1,484.55 : x
2. Step 2: Convert to fraction form
   2,870.25/4,309.32 = 1,484.55/x
3. Step 3: Cross multiply
   2,870.25x = 4,309.32 × 1,484.55
4. Step 4: Simplify right side
   2,870.25x = 6,397,401.01
5. Step 5: Solve for x
   x = 6,397,401.01/2,870.25
6. Step 6: Final answer
   x = 2,228.87