Finding the Fourth Proportional to 2,980.72, 4,470.54 and 1,131.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,980.72 : 4,470.54 = 1,131.22 : x
2. Step 2: Convert to fraction form
   2,980.72/4,470.54 = 1,131.22/x
3. Step 3: Cross multiply
   2,980.72x = 4,470.54 × 1,131.22
4. Step 4: Simplify right side
   2,980.72x = 5,057,164.26
5. Step 5: Solve for x
   x = 5,057,164.26/2,980.72
6. Step 6: Final answer
   x = 1,696.63