Finding the Fourth Proportional to 2,162.40, 2,981.70 and 1,416.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162.40 : 2,981.70 = 1,416.30 : x
2. Step 2: Convert to fraction form
   2,162.40/2,981.70 = 1,416.30/x
3. Step 3: Cross multiply
   2,162.40x = 2,981.70 × 1,416.30
4. Step 4: Simplify right side
   2,162.40x = 4,222,981.71
5. Step 5: Solve for x
   x = 4,222,981.71/2,162.40
6. Step 6: Final answer
   x = 1,952.91