Finding the Fourth Proportional to 1,905.72, 2,624.05 and 1,668.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,905.72 : 2,624.05 = 1,668.34 : x
2. Step 2: Convert to fraction form
   1,905.72/2,624.05 = 1,668.34/x
3. Step 3: Cross multiply
   1,905.72x = 2,624.05 × 1,668.34
4. Step 4: Simplify right side
   1,905.72x = 4,377,806.69
5. Step 5: Solve for x
   x = 4,377,806.69/1,905.72
6. Step 6: Final answer
   x = 2,297.19