Finding the Fourth Proportional to 2,430.71, 3,647.83 and 970.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,430.71 : 3,647.83 = 970.28 : x
2. Step 2: Convert to fraction form
   2,430.71/3,647.83 = 970.28/x
3. Step 3: Cross multiply
   2,430.71x = 3,647.83 × 970.28
4. Step 4: Simplify right side
   2,430.71x = 3,539,395.83
5. Step 5: Solve for x
   x = 3,539,395.83/2,430.71
6. Step 6: Final answer
   x = 1,456.12