Finding the Fourth Proportional to 2,530.40, 3,790.35 and 1,487.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,530.40 : 3,790.35 = 1,487.25 : x
2. Step 2: Convert to fraction form
   2,530.40/3,790.35 = 1,487.25/x
3. Step 3: Cross multiply
   2,530.40x = 3,790.35 × 1,487.25
4. Step 4: Simplify right side
   2,530.40x = 5,637,198.04
5. Step 5: Solve for x
   x = 5,637,198.04/2,530.40
6. Step 6: Final answer
   x = 2,227.79