Finding the Fourth Proportional to 2,167.83, 2,980.53 and 1,764.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,167.83 : 2,980.53 = 1,764.45 : x
2. Step 2: Convert to fraction form
   2,167.83/2,980.53 = 1,764.45/x
3. Step 3: Cross multiply
   2,167.83x = 2,980.53 × 1,764.45
4. Step 4: Simplify right side
   2,167.83x = 5,258,996.16
5. Step 5: Solve for x
   x = 5,258,996.16/2,167.83
6. Step 6: Final answer
   x = 2,425.93