Finding the Fourth Proportional to 2,980.50, 4,470.84 and 1,106.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,980.50 : 4,470.84 = 1,106.86 : x
2. Step 2: Convert to fraction form
   2,980.50/4,470.84 = 1,106.86/x
3. Step 3: Cross multiply
   2,980.50x = 4,470.84 × 1,106.86
4. Step 4: Simplify right side
   2,980.50x = 4,948,593.96
5. Step 5: Solve for x
   x = 4,948,593.96/2,980.50
6. Step 6: Final answer
   x = 1,660.32