Finding the Fourth Proportional to 2,456.72, 3,685.08 and 1,430

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.72 : 3,685.08 = 1,430 : x
2. Step 2: Convert to fraction form
   2,456.72/3,685.08 = 1,430/x
3. Step 3: Cross multiply
   2,456.72x = 3,685.08 × 1,430
4. Step 4: Simplify right side
   2,456.72x = 5,269,664.40
5. Step 5: Solve for x
   x = 5,269,664.40/2,456.72
6. Step 6: Final answer
   x = 2,145