Finding the Fourth Proportional to 1,981.92, 2,970.72 and 1,116.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,981.92 : 2,970.72 = 1,116.84 : x
2. Step 2: Convert to fraction form
   1,981.92/2,970.72 = 1,116.84/x
3. Step 3: Cross multiply
   1,981.92x = 2,970.72 × 1,116.84
4. Step 4: Simplify right side
   1,981.92x = 3,317,818.92
5. Step 5: Solve for x
   x = 3,317,818.92/1,981.92
6. Step 6: Final answer
   x = 1,674.04