Finding the Fourth Proportional to 3,196.71, 4,412.03 and 2,538.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,196.71 : 4,412.03 = 2,538.59 : x
2. Step 2: Convert to fraction form
   3,196.71/4,412.03 = 2,538.59/x
3. Step 3: Cross multiply
   3,196.71x = 4,412.03 × 2,538.59
4. Step 4: Simplify right side
   3,196.71x = 11,200,300.48
5. Step 5: Solve for x
   x = 11,200,300.48/3,196.71
6. Step 6: Final answer
   x = 3,503.70