Finding the Fourth Proportional to 2,007.57, 3,004.61 and 1,930.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.57 : 3,004.61 = 1,930.89 : x
2. Step 2: Convert to fraction form
   2,007.57/3,004.61 = 1,930.89/x
3. Step 3: Cross multiply
   2,007.57x = 3,004.61 × 1,930.89
4. Step 4: Simplify right side
   2,007.57x = 5,801,561.75
5. Step 5: Solve for x
   x = 5,801,561.75/2,007.57
6. Step 6: Final answer
   x = 2,889.84