Finding the Fourth Proportional to 3,930.48, 5,888.78 and 2,077.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,930.48 : 5,888.78 = 2,077.50 : x
2. Step 2: Convert to fraction form
   3,930.48/5,888.78 = 2,077.50/x
3. Step 3: Cross multiply
   3,930.48x = 5,888.78 × 2,077.50
4. Step 4: Simplify right side
   3,930.48x = 12,233,940.45
5. Step 5: Solve for x
   x = 12,233,940.45/3,930.48
6. Step 6: Final answer
   x = 3,112.58