Finding the Fourth Proportional to 3,983.31, 5,488.22 and 2,970.74

Step by Step Solution

1. Step 1: Write the proportion equation
   3,983.31 : 5,488.22 = 2,970.74 : x
2. Step 2: Convert to fraction form
   3,983.31/5,488.22 = 2,970.74/x
3. Step 3: Cross multiply
   3,983.31x = 5,488.22 × 2,970.74
4. Step 4: Simplify right side
   3,983.31x = 16,304,095.83
5. Step 5: Solve for x
   x = 16,304,095.83/3,983.31
6. Step 6: Final answer
   x = 4,093.10