Finding the Fourth Proportional to 3,488.25, 5,231.43 and 1,379.54

Step by Step Solution

1. Step 1: Write the proportion equation
   3,488.25 : 5,231.43 = 1,379.54 : x
2. Step 2: Convert to fraction form
   3,488.25/5,231.43 = 1,379.54/x
3. Step 3: Cross multiply
   3,488.25x = 5,231.43 × 1,379.54
4. Step 4: Simplify right side
   3,488.25x = 7,216,980.02
5. Step 5: Solve for x
   x = 7,216,980.02/3,488.25
6. Step 6: Final answer
   x = 2,068.94