Finding the Fourth Proportional to 2,930.57, 4,044.27 and 1,811.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,930.57 : 4,044.27 = 1,811.55 : x
2. Step 2: Convert to fraction form
   2,930.57/4,044.27 = 1,811.55/x
3. Step 3: Cross multiply
   2,930.57x = 4,044.27 × 1,811.55
4. Step 4: Simplify right side
   2,930.57x = 7,326,397.32
5. Step 5: Solve for x
   x = 7,326,397.32/2,930.57
6. Step 6: Final answer
   x = 2,499.99