Finding the Fourth Proportional to 3,196.69, 4,411.73 and 1,870.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,196.69 : 4,411.73 = 1,870.31 : x
2. Step 2: Convert to fraction form
   3,196.69/4,411.73 = 1,870.31/x
3. Step 3: Cross multiply
   3,196.69x = 4,411.73 × 1,870.31
4. Step 4: Simplify right side
   3,196.69x = 8,251,302.74
5. Step 5: Solve for x
   x = 8,251,302.74/3,196.69
6. Step 6: Final answer
   x = 2,581.20