Finding the Fourth Proportional to 3,930.09, 5,422.59 and 2,494.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,930.09 : 5,422.59 = 2,494.86 : x
2. Step 2: Convert to fraction form
   3,930.09/5,422.59 = 2,494.86/x
3. Step 3: Cross multiply
   3,930.09x = 5,422.59 × 2,494.86
4. Step 4: Simplify right side
   3,930.09x = 13,528,602.89
5. Step 5: Solve for x
   x = 13,528,602.89/3,930.09
6. Step 6: Final answer
   x = 3,442.31